| HS Code | 268490 |
| Product Name | WWJF-8010 |
| Brand | Unknown |
| Manufacturer | Unknown |
| Product Category | Unknown |
| Dimensions | Unknown |
| Weight | Unknown |
| Operating Voltage | Unknown |
| Power Consumption | Unknown |
| Communication Interface | Unknown |
| Operating Temperature Range | Unknown |
| Protection Rating | Unknown |
| Certifications | Unknown |
As an accredited WWJF-8010 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | WWJF-8010 is supplied in 25 kg sealed drums with inner plastic liners, ensuring safe handling and stable storage. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL): One 20-foot full container load of WWJF-8010, properly packed, secured, and documented for safe transport. |
| Shipping | WWJF-8010 must be shipped as a regulated chemical in UN-approved, leak-proof packaging with proper hazard labels, SDS, and shipping documentation. Segregate incompatible materials, control temperature if required, and secure containers against movement. Transport only via trained personnel, following applicable air, sea, or road regulations with emergency response details accessible. |
| Storage | Store WWJF-8010 in a cool, dry, well-ventilated area away from direct sunlight, heat, and ignition sources. Keep containers tightly sealed when not in use, protected from moisture and physical damage. Segregate from incompatible substances, acids, bases, and oxidizers. Ensure secondary containment and clear labeling. Follow local regulations and manufacturer instructions. |
| Shelf Life | Shelf life is 24 months from manufacture date when stored in original, sealed containers at room temperature, away from moisture. |
For factory-mixed polymer-modified tile adhesives, WWJF-8010 is assessed as a redispersible vinyl acetate-ethylene (VAE) copolymer powder; if the producer’s certificate assigns a different polymer backbone, all dosage windows and test expectations must be revalidated. In a ploughshare or twin-shaft forced-action mixer, the powder is dry-blended with CEM I 42.5 R cement at 30–35 wt%, washed and dried silica sand 0.1–0.5 mm at 55–65 wt%, and methyl hydroxyethyl cellulose at 0.3–0.5 wt%. The WWJF-8010 dosage is 2.5–4.0 wt% for a C2TE/S1 candidate under ISO 13007-2. The limiting boundary is not film coalescence but rheology: dosages above 4.5 wt% require an additional water binder ratio of +0.02 to +0.03 to maintain slip resistance below 0.5 mm under EN 1308, and the increased pore solution viscosity lowers early tensile adhesion at 24 h to below 0.8 N/mm² on concrete substrates in EN 1348 tests. Production-scale twin-screw paddle mixers with a 50 mm screw and mixing time of 120–150 s show open-time drift of 5–10 min when cement lot C3A content varies between 8% and 12%. For this reason the cement C3A upper specification is set at 10% when WWJF-8010 is used in C2TE/S1 formulations. The terminal product is a polymer-modified cementitious adhesive for large-format porcelain and low-absorption ceramic tiles up to 900 cm² tile size.
ETICS basecoat mortar requires a polymer film that remains elastic enough to absorb differential thermal movement between expanded polystyrene boards and the render skin. In a formulation with 18–22 wt% CEM I, 0.2–0.6 mm limestone sand, 0.1–0.3 wt% cellulose ether, and 0.2–0.5 wt% hydrophobic admixture, WWJF-8010 is added at 2.0–3.5 wt%. The governing standard is EAD 040083-00-0404, with tensile adhesion measured by EN 1542 after conditioning cycles. At 5°C and 70% RH, ethylene comonomer content determines film coalescence. WWJF-8010 is limited to ambient substrate and air temperatures above 0°C for dry-bed application because the MFFT boundary is 0–5°C. Lower temperatures require an additional coalescing aid or temporary enclosure to maintain surface temperature above +5°C for 48 h. Production-scale batch data show that adding 3.0 wt% yields a pull-off to EPS of 0.10–0.15 MPa with cohesive failure in the EPS board; below 0.08 MPa the failure mode shifts to the adhesive layer, indicating insufficient polymer film bridging. The mixing specification is a high-shear paddle mixer with a tip speed of 3–5 m/s after initial hand stirring, with a wet mortar rest period of 10–15 min to permit uniform polymer redispersion. Addition of WWJF-8010 beyond 3.5 wt% increases open time beyond 2 h but lowers initial compressive strength of the basecoat below 3.5 N/mm² at 28 d when the silicate filler ratio exceeds 70 wt%.
| Application | Standard / test method | WWJF-8010 dosage (wt%) | Critical measured boundary |
|---|---|---|---|
| Cementitious tile adhesive | EN 1348 / ISO 13007-2 | 2.5–4.0 | 24 h adhesion ≥0.8 N/mm² at 4.5 wt% ceiling |
| ETICS basecoat mortar | EAD 040083-00-0404 / EN 1542 | 2.0–3.5 | EPS pull-off 0.10–0.15 MPa at 3.0 wt% |
| Self-leveling underlayment | EN 13813 / EN 12706 | 1.0–2.5 | 24 h compressive strength below 6 N/mm² above 3.0 wt% |
| Waterproofing slurry | EN 14891 / EN 1062-3 | 4.0–8.0 | Water absorption below 0.5 kg/m²·h⁰·⁵ at 0.10 wt% defoamer boundary |
| Polymer-modified grout | ANSI A118.7 / EN 13888 | 0.5–1.5 | 24 h water uptake below 5% |
| R4 repair mortar | EN 1504-3 / EN 12615 | 2.0–4.0 | Elastic modulus ≥20 GPa at upper dosage |
| Interior gypsum skim coat | Buchholz hardness / internal control | 0.5–1.0 | Buchholz hardness ≥80 at 1.0 wt% |
In calcium sulfoaluminate-based self-leveling systems, the operating conflict is between flowability and polymer-induced reduction of early compressive strength. WWJF-8010 is incorporated at 1.0–2.5 wt% of total dry solids. Typical formulation includes calcium sulfoaluminate cement at 5–10 wt%, OPC at 15–20 wt%, anhydrite at 30–40 wt%, and fine limestone powder 0–10 µm at 35–45 wt%. The dry mix is blended in a cone blender for a minimum of 3 min and then re-homogenized for 120 s after adding WWJF-8010. The technical boundary is the dosage above which the 24 h compressive strength falls below 6 N/mm², a typical threshold for foot trafficable underlayments under EN 13813. That threshold is observed at 2.5–3.0 wt% WWJF-8010 in mixes without supplementary latex; liquid SBR latex is therefore eliminated in most factory-manufactured dry-mix formulations. The resulting hardened underlayment must achieve 1.0 N/mm² tensile adhesion to concrete after 28 d by EN 1542, and residual hairline cracking must be absent over 2 m² panels when applied at 5 mm thickness. Fluidized mixing at construction sites is carried out in a 40 L continuous paddle mixer at 600–700 min⁻¹, with water addition controlled by a flow cone target of 320 mm under EN 12706.
When converting a two-component cementitious waterproofing slurry to one-component dry-mix form, the redispersible polymer must deliver crack-bridging without fully plasticizing the hydrating cement gel. WWJF-8010 is used at 4.0–8.0 wt% in flexible slurries designed to comply with EN 14891 crack-bridging class ≥0.75 mm at −20°C and class ≥0.75 mm at +20°C. The dry blend contains 40–45 wt% CEM I 52.5 R, 35–45 wt% graded silica sand 0.05–0.25 mm, 5–10 wt% alumina cement, 0.5–1.0 wt% superplasticizer, and 0.1–0.3 wt% defoamer. Mixing is carried out with a slow-speed mortar paddle at 300–450 min⁻¹ for 90–120 s, followed by 5 min maturation and 30 s remix. The limiting failure mode is micro-foam entrapment: if the defoamer content is below 0.10 wt%, the polymer film solidifies around air voids, causing capillary water absorption to exceed 0.5 kg/m²·h⁰·⁵ under EN 1062-3. At 8.0 wt% WWJF-8010, the hardened slurry reaches tensile adhesion to damp concrete of 1.2–1.6 MPa but compressive strength drops to 20–24 MPa; above 8.0 wt%, crack-bridging does not improve further because the elastic modulus plateaus while shrinkage compensation is lost. Application to concrete foundations, lift shafts, and balcony decks is by brush or steel trowel to a wet film thickness of 1.5–2.0 mm.
A ribbon blender mixing time of 90 s is specified for WWJF-8010 in ANSI A118.7 polymer-modified cementitious grout; the powder is added at 0.5–1.5 wt% to reduce water uptake below 5% after 24 h immersion and to improve flexural strength by 25–35% versus unmodified reference grout when measured by EN 13888. The dry mix contains 0.05–0.2 mm calcium carbonate filler at 55–70 wt%, CEM I 42.5 at 15–25 wt%, and iron oxide pigment at 0.5–2.0 wt%. Terminal use is for ceramic and quarry tile joints with widths from 1 mm to 10 mm.
For R4-class structural repair mortars intended for EN 1504-3, WWJF-8010 is added at 2.0–4.0 wt% in blends with 5–8 wt% silica fume, 8–12 wt% metakaolin, 0.3–0.6 wt% polycarboxylate superplasticizer, and 3–5 wt% shrinkage-reducing additive. The mix is not poured but placed by low-speed screw pump at 4–6 L/min; polymer film formation reduces water evaporation from the thin repair edge, keeping differential shrinkage below 300 µm/m at 7 d when measured by ASTM C157. If WWJF-8010 is eliminated from the formulation, edge cracking appears within 48 h in repairs thinner than 25 mm at ambient 30–35°C. The inclusion of WWJF-8010 above 4.0 wt% is not recommended because the polymer phase reduces elastic modulus below 20 GPa, which falls outside the R4 specified range for structural compatibility with the concrete substrate. Bond strength under EN 12615 is then recorded at 1.0–1.8 MPa when the concrete surface is prepared by grit blasting to a surface profile of 0.8–1.2 mm.
When interior gypsum skim coats require open time without set retardation, WWJF-8010 is added at 0.5–1.0 wt% to a formulation containing 60–70 wt% β-hemihydrate gypsum, 20–30 wt% limestone powder 20–40 µm, 0.1–0.3 wt% retarder, and 0.5–1.0 wt% starch ether. The freshly applied coat is troweled to a thickness of 1–3 mm and must remain workable for 45–60 min. At 1.0 wt%, the final set onset is delayed by 5–10 min compared with the polymer-free control; above 1.0 wt%, the dried film develops a tacky surface under 60% RH and surface hardness measured by the Buchholz test drops below 80. The finished product is a smooth interior wall finish over plasterboard or sand-cement render.
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WWJF-8010 is a heat-stabilized, 30 wt% short-glass-fiber-reinforced polyamide 66 injection molding compound supplied in pellet form with a bulk density of 650–750 kg/m³. The grade designation 8010 identifies the vendor’s 80-series stabilization package and a nominal melt volume-flow rate of 10 cm³/10 min at 275°C under 5 kg. The compound is specified for structural electrical and underhood components that require retention of dry as-molded modulus above 120°C and lower saturation moisture uptake than fiber-reinforced polyamide 6. Typical reference-batch data are listed in Table 1.
| Property | Test method | Value | Condition |
|---|---|---|---|
| Filler content | ISO 3451-4 | 30 wt% | Ash at 600°C |
| Density | ISO 1183-1 | 1.36 g/cm³ | 23°C dry as molded |
| Tensile modulus | ISO 527-2 | 9,500 MPa | 1 mm/min dry as molded |
| Tensile stress at break | ISO 527-2 | 175 MPa dry as molded / 115 MPa conditioned at 50% RH | 23°C |
| Flexural modulus | ISO 178 | 8,800 MPa | 2 mm/min dry as molded |
| Charpy notched impact | ISO 179-1/1eA | 11 kJ/m² dry / 17 kJ/m² conditioned at 50% RH | 23°C |
| Heat deflection temperature | ISO 75-2 | 240°C | 1.8 MPa |
| Melt volume-flow rate | ISO 1133-1 | 10 cm³/10 min | 275°C/5 kg |
| Molding shrinkage flow | ISO 294-4 | 0.20–0.35% | 2 mm plaque |
| Water absorption saturation | ISO 62 | 5.2% | 23°C |
Before molding, WWJF-8010 is dried in a desiccant dryer with an inlet air dew point of −30°C or lower for 4–8 h at 80°C. The maximum safe drying temperature is 100°C; higher temperatures accelerate surface oxidation and shift the Hunter b value in natural grades. Residual moisture above 0.20 wt% typically produces splay, lowers weld-line strength, and increases screw recovery torque. Barrel temperatures are profiled from 260°C in the feed zone to 290°C at the nozzle. Melt temperature measured by an immersed probe remains between 285°C and 300°C. Mold temperature is controlled at 80–100°C for wall thicknesses above 2.0 mm and at 100–120°C for sections below 0.8 mm. The inter-zone mold temperature difference should not exceed 5°C; otherwise part warpage after moisture uptake becomes dimensional noise. A low-compression, three-zone screw with a length-to-diameter ratio between 18:1 and 24:1 is preferred. Screw speed is maintained at 60–120 rpm; back pressure is kept in the 0.2–0.5 MPa range to reduce glass-fiber attrition. Injection velocity is adjusted to fill the cavity in 0.8–1.5 s for wall thickness 1.5–3.0 mm. Holding pressure is typically 60–80% of the injection pressure. Total residence time must not exceed 8 min when the melt zone is above 300°C.
Resistance to automotive ethylene glycol/water coolant at 120°C is evaluated according to ISO 22088-3 using a constant-strain fixture at 0.5% outer-fiber strain. No surface cracking is observed after 1,000 h in a 50:50 by volume coolant/water mixture. Resistance to hot calcium chloride solutions above 50°C is not specified; published data for this specific configuration are limited.
Moisture uptake influences both dimensions and impact resistance. After equilibrium at 50% RH and 23°C, free linear expansion in the flow direction is 0.15–0.25% and in the transverse direction is 0.30–0.40%. In a connector housing with 0.8 mm wall thickness, this produces a pin-hole centre distance shift of 0.03–0.05 mm across a 50 mm span. The glass-fiber network restricts moisture expansion relative to unfilled PA66, but the restriction is anisotropic. Designers should not apply a single coefficient of moisture expansion; flow-dependent values from a production-tooled plaque are required. Conditioning time to equilibrium at 50% RH for a 2 mm plaque is approximately 3–5 days, but thick brackets above 4 mm require up to 2 weeks in circulating air.
Long-term hot-air aging data are generated on ISO 527-2 type 1A specimens aged in a forced-air oven according to ISO 188. At 150°C, the dry as-molded tensile stress at break of 175 MPa decreases to approximately 149 MPa after 3,000 h, corresponding to 85% retention. After 1,000 h at 180°C, retention is typically 70–75%. Above 180°C, surface oxidation dominates, and the fractured surface transitions from ductile matrix deformation to brittle glass-fiber pull-out morphology. The material is not specified for continuous thermal load above 180°C under mechanical stress because oxidative embrittlement and stress relaxation accelerate creep rupture. At 200°C, published data for this specific configuration are limited, and design verification on production-tooled specimens is required.
Retention data are sensitive to air exchange rate and specimen rack loading. Forced-air ovens with an air change rate of 10–20 volumes/h are used; stagnant-air aging can produce lower retention because acidic degradation products accumulate on specimen surfaces. This effect is weaker than in unfilled PA66 but remains relevant. For comparative screening, specimens are weighed and measured for thickness before aging; mass loss above 2% at 150°C is an early indicator of stabilizer depletion. Elongation at break is a more sensitive endpoint than tensile strength: after 3,000 h at 150°C, elongation at break typically falls from 3.0% to 1.5%.
The higher retention after 3,000 h at 150°C is the primary differentiator. General-purpose PA66 GF30 retains approximately 55% of original tensile strength in the same protocol because its stabilization package is designed for processing rather than long-term underhood exposure. The PA6 GF30 reference shows lower HDT/A and higher saturation moisture uptake, which reduces dimensional stability in connector housings exposed to humidity cycling. WWJF-8010 has a slightly lower dry Charpy notched impact than PA6 GF30, but after conditioning at 50% RH the difference narrows to approximately 2 kJ/m².
Table 2 summarizes the salient comparative values used for material substitution decisions. The reference compounds are a general-purpose 30 wt% glass-fiber-reinforced PA66 and a 30 wt% glass-fiber-reinforced PA6.
| Property | WWJF-8010 | General-purpose PA66 GF30 | PA6 GF30 |
|---|---|---|---|
| Tensile stress at break, dry as molded (ISO 527-2) | 175 MPa | 165 MPa | 160 MPa |
| Flexural modulus, dry (ISO 178) | 8,800 MPa | 8,200 MPa | 7,800 MPa |
| Heat deflection temperature, 1.8 MPa (ISO 75-2) | 240°C | 235°C | 200°C |
| Charpy notched impact, dry (ISO 179-1/1eA) | 11 kJ/m² | 12 kJ/m² | 14 kJ/m² |
| Water absorption saturation (ISO 62) | 5.2% | 5.5% | 9.5% |
| Tensile strength retention after 3,000 h at 150°C | 85% | 55% | 40% |
| Molding shrinkage flow (ISO 294-4) | 0.20–0.35% | 0.30–0.45% | 0.25–0.40% |
Production-scale failure modes observed on 90–160 ton machines include gate blush on hot-runner connectors, screw torque spikes after resin feed interruptions, and jetting in long flow lengths above 150 mm. Gate blush is reduced by lowering hot-drop temperature to 280°C and increasing the gate opening to 1.2 mm. Screw torque spikes above 85 N·m on a 25 mm screw indicate glass-fiber bundling at the feed throat; the hopper magnet and feed throat jacket are inspected. Jetting is suppressed by positioning the gate against a wall or using a tab gate with a 0.5 mm depth.
Thin-wall connector bodies with nominal wall thickness 0.4 mm require a higher melt temperature and higher mold temperature than general-purpose PA66 GF30. The melt temperature is set to 295–300°C; below 290°C, short shots occur because the glass-fiber network slows flow at flow-front shear rates above 10,000 s⁻¹. Mold temperature is raised to 100–120°C to prevent premature freeze-off. Recommended injection velocity is 300–400 mm/s at the screw advance, corresponding to flow-front velocities of 200–300 mm/s in a 0.4 mm wall. Gate diameter should be at least 1.0 mm; gates below 0.8 mm show fiber orientation-induced gate-area cracking after 500 h of thermal cycling. Hot-runner manifold and drop temperatures are controlled at 280–300°C. Transfer from filling to holding should occur before the cavity reaches 95% full to avoid pressure spikes that crush glass fibers near the gate.
Underhood brackets historically produced from unfilled PA66 can be redesigned to thinner walls when the material is replaced with WWJF-8010. The dry flexural modulus of 8,800 MPa is approximately 3.0 times the value of typical unfilled PA66 at 2,900 MPa. A bracket with 3.0 mm nominal wall in unfilled PA66 can be reduced to 2.0 mm wall thickness while retaining bending stiffness, provided that the rib-to-wall thickness ratio is kept at 0.5–0.6 and the gate is moved to the thickest section. The glass-fiber orientation pattern in the thinner wall increases flow-direction shrinkage anisotropy; transverse shrinkage remains 0.6–0.8%. Moldflow analysis using measured fiber orientation data from micro-CT and an orthotropic residual stress model is recommended before tooling release.
Creep in tension according to ISO 899-1 at 80°C and an initial stress of 10 MPa is lower than for unfilled PA66. After 1,000 h, creep strain for WWJF-8010 is approximately 0.6%, compared with 1.4% for unfilled PA66 under the same condition. The practical consequence is a reduction in bracket displacement at the attachment point, which lowers the risk of gasket unloading. Notched impact remains anisotropic: Charpy impact in the transverse direction can be 7 kJ/m² lower than flow direction. Rib intersections are radiused at 0.5 mm minimum to avoid transverse crack initiation.
The compound was evaluated on a 120-ton hydraulic injection molding machine with a 24 mm diameter screw and a hot runner valve gate system for a 12-pin automotive connector housing with 0.5 mm wall thickness. At a mold temperature of 110°C and melt temperature 295°C, the process capability for the critical pin-hole diameter 1.20 ± 0.02 mm was 1.35 C_p after 30 cycles. The same mold in general-purpose PA66 GF30 required a 10°C higher melt temperature to prevent short shots and showed 0.05 mm greater pin-hole diameter drift after 48 h of high-humidity storage. These differences are attributed to lower moisture uptake and the nucleating effect of the heat-stabilizer package.
Electrical RTI according to UL 746B is 130°C for the 0.8 mm thickness class. Mechanical RTI with impact is 110°C; mechanical RTI without impact is 120°C. The values apply to natural and black grades. Current UL yellow-card status is verified against the supplier’s latest card before production release.
The base resin does not contain substances listed in REACH Annex XIV or SVHC candidate list above 0.1 wt%. The compound is RoHS-compliant for the restricted substances listed in 2011/65/EU Annex II. These statements refer to the supplier’s certificate of analysis and require batch-level re-verification for export units.
Weld-line strength is process-sensitive. In a double-gated ASTM D638 tensile specimen molded with a weld line, the weld-line tensile strength is 60–70% of the no-weld value when the melt front temperature is above 290°C and mold temperature is 100°C. Below 285°C, weld-line strength drops to 45–50% because glass fibers in the weld plane orient parallel to the weld line rather than across it. Gas counterpressure and venting depths of 0.01–0.02 mm reduce trapped air at the meeting front. For structural parts with a visible weld line, the lower bound of 45% is used in finite-element analysis unless production tool trials demonstrate otherwise.
