| HS Code | 608979 |
| Product Name | Mowital SB 60 HH |
| Chemical Type | Polyvinyl butyral (PVB) |
| Appearance | White to pale yellow free-flowing powder or granules |
| Molecular Weight | Medium-high molecular weight grade |
| Viscosity | Approximately 60 mPa·s (measured in 5% solution in ethanol at 23°C) |
| Glass Transition Temperature | Approximately 75–80 °C |
| Hydroxyl Group Content | Approximately 25–30 mol% |
| Butyral Group Content | Approximately 70–75 mol% |
| Density | About 1.1 g/cm³ |
| Solubility | Soluble in alcohols, esters, ketones, and glycol ethers; resistant to aliphatic hydrocarbons |
As an accredited Mowital SB 60 HH factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Mowital SB 60 HH polyvinyl butyral resin is supplied in 20 kg multi-wall paper bags with polyethylene liner, palletized. |
| Container Loading (20′ FCL) | 20′ FCL: Mowital SB 60 HH packed in sealed bags on pallets, securely stowed, weight optimized for safe transport. |
| Shipping | Mowital SB 60 HH is a polyvinyl butyral resin supplied as a free-flowing white powder. It ships as non-dangerous cargo under standard transport regulations. Protect from moisture and direct heat; use dry, clean containers. Multi-layer paper bags or drums are standard packaging, stored in a cool, ventilated area away from ignition sources. |
| Storage | Store Mowital SB 60 HH in its original, tightly sealed container in a cool, dry, well-ventilated area, away from direct sunlight, heat sources, and ignition sources. Protect from moisture and humidity, as the resin is hygroscopic. Maintain temperatures below 25°C. Under proper conditions, shelf life is typically around 12 months from delivery. |
| Shelf Life | Shelf life is typically 24 months from production date when stored unopened in original packaging, in a cool, dry place. |
On steel structures and hot-dip galvanized components that proceed directly to two-pack epoxy or polyurethane topcoats, a pre-treatment primer based on Mowital SB 60 HH is prepared as a low-solids etch primer in which the resin is dissolved in isopropanol or n-butanol and activated with 85% orthophosphoric acid. The mixed formulation is held at 5.5–8.5 wt% resin solids, 0.3–0.7 wt% phosphoric acid, 0.5–1.5 wt% zinc phosphate anti-corrosive pigment, and the balance alcohol diluent; acid levels above 0.8 wt% accelerate acetal hydrolysis in storage and shorten the usable spray window below 4 h. Application on production lines uses 316L stainless steel pressure vessels and air-assisted airless spray equipment with tip sizes 0.28–0.38 mm at 3–5 bar fluid pressure, producing 20–30 µm dry film thickness. Adhesion is verified by ASTM D3359 cross-cut tape pull after 24 h cure at 23±2°C, and corrosion creepage is assessed by ASTM D1654 after 500 h neutral salt spray per ISO 9227. The primer area complies with the application requirements of ISO 12944-5 as a pre-treatment option, and the non-chromate pigment package is selected to avoid restrictions under REACH Annex XVII. Terminal finished components include railcar underframe sections, aluminium window extrusions, galvanized HVAC housings, and agricultural equipment frames that require delayed topcoating without repeat surface preparation.
In multilayer ceramic capacitor manufacture using submicron barium titanate powders with D50 0.2–0.6 µm, Mowital SB 60 HH is introduced as the primary thermoplastic binder in the tape-casting slurry at 6–12 parts by weight per 100 parts of ceramic powder, corresponding to 3.0–7.5 wt% of the total slurry. Batch-to-batch variation in ceramic powder specific surface area, commonly 2.5–4.0 m²/g, shifts minimum binder demand by ±0.5 parts per 100 parts ceramic powder; when the binder content is not adjusted for a high-surface-area lot, edge cracking and poor release from PET carrier appear within the first 200 m of casting. The slurry is produced by a two-stage ball-milling process in a zirconia-lined mill with yttria-stabilized zirconia balls 1.0–2.0 mm; the first stage disperses the ceramic powder with solvent and phosphate ester dispersant for 12–18 h, and the second stage dissolves the binder plus dibutyl phthalate or benzyl butyl phthalate plasticizer for 6–10 h at 15–25°C. De-airing under vacuum 50–100 mbar is maintained until the slurry viscosity measured by Brookfield RVT spindle 4 at 20 rpm is 1,500–3,500 mPa·s. Tape is cast onto silicone-coated PET carrier at 0.8–1.5 m/min, oven zone temperatures are staged at 50/65/75/80°C, and the dried green sheet thickness is controlled between 2–10 µm for ultra-thin MLCC dielectric layers. The critical process boundary occurs during binder burnout: the heating rate from 200°C to 400°C is limited to 0.5–1.5°C/min because the PVB decomposition gases cause delamination or internal electrode blistering if the rate exceeds 2.0°C/min; residual carbon is measured by combustion analysis and must remain below 0.05 wt% to avoid reducing insulation resistance in finished MLCCs. Electronics-grade compliance is evaluated under RoHS 2011/65/EU and REACH SVHC restrictions, with dielectric reliability of the final parts tested according to IEC 60384-1. Terminal parts include 0402 to 1206 MLCCs, LTCC modules, chip varistors, and multilayer piezoelectric actuators.
Employed as the primary film-forming resin in reverse-printed BOPP/PE laminates, Mowital SB 60 HH is dissolved with nitrocellulose or polyurethane co-binders in ethyl acetate/ethanol/isopropanol blends at 15–22 wt% solids, with the resin fraction held at 6–10 wt% of the final ink formulation. Food-contact suitability is positioned under FDA 21 CFR 175.300 for resinous and polymeric coatings and EU 10/2011 overall migration limits of 10 mg/dm², with residual solvent control in printed and laminated film below 5 mg/m² per internal release protocols aligned with 1935/2004/EC Article 3. The production process uses a gravure press with cylinder engraving 120–180 lines/cm, cell depth 18–35 µm, and electrostatic assist at 150–250 m/min; oven drying is set at 70–90°C and the printed web is immediately laminated with solvent-free polyurethane adhesive on a separate station. Ink-pan viscosity is maintained at 18–25 s through a DIN 4 mm cup, and solvent-retaining binder selection is used to prevent blocking at rewind tensions above 10 N/cm. Terminal products include OPP/OPP confectionery bags, BOPP/PE snack films, dry-food lamination structures, and lidding films for dairy cups.
Laminated safety glass and photovoltaic encapsulation demand a plasticized PVB sheet compounded from Mowital SB 60 HH, with a reference formulation based on 100 parts resin, 30–40 phr triethylene glycol bis(2-ethylhexanoate) or tetraethylene glycol di-n-heptanoate, 0.1–0.4 phr hindered amine light stabilizer, and 0.05–0.2 phr phenolic antioxidant. Adhesion-control additives such as magnesium or potassium carboxylates are dosed at 0.001–0.02 phr to adjust pummel adhesion to float glass without shifting the glass transition of the interlayer beyond the 25–35°C range. Compounding is performed on a co-rotating twin-screw extruder with L/D 25–40, barrel temperature profile 170–210°C, and screw speed 150–300 rpm; the resin must be pre-dried to volatile moisture below 0.2 wt% because higher moisture produces visible bubbles and uneven plasticizer uptake at the die lip. The melt is calendared to 0.38–1.52 mm thickness, conditioned at 20–25°C and 23–28% RH, and tested for optical and mechanical compliance under ISO 12543-2, with finished automotive glazing certified under ECE R43 and ANSI Z26.1. Terminal components include automotive windshields, architectural laminated glass, bullet-resistant glazing, and photovoltaic module encapsulant films.
For unit-dose pharmaceutical packaging, Mowital SB 60 HH is used as a heat-sealable barrier coating on aluminium foil at 10–18 wt% resin solids in ethyl acetate/methyl ethyl ketone/isopropanol, with dry coat weight controlled to 1.5–2.5 g/m² on 20–25 µm soft-temper aluminium foil. The solution is gravure-coated at 50–150 m/min through a ceramic anilox roll, dried in an oven with 80–120°C zone temperatures, and then slit into reel widths for blister thermoforming lines. Heat sealing is performed against PVC/PVDC or PP blister webs at 150–180°C, 2–4 bar jaw pressure, and 0.5–1.0 s dwell; seal strength is measured per ASTM F88 and must normally exceed 5 N/15 mm for child-resistant blister specifications. Packaging suitability is assessed under USP <661.1> plastic packaging system protocols, with food-grade reserve compliance referenced to FDA 21 CFR 175.300 and EU 10/2011. Terminal products include cold-form blister lidding foil, strip packs, transdermal patch pouch stock, and sachet base webs where heat-seal integrity must survive distribution humidity cycles.
Manufacture of anti-vibration mounts and conveyor rollers requires a tie-coat primer in which Mowital SB 60 HH is formulated at 8–12 wt% resin solids in methyl ethyl ketone/toluene or isopropanol, combined with a heat-reactive phenolic resin at 1.5–2.5 wt% and carbon black dispersant at 1.0–2.0 wt%. The absence of silane coupling agents is specified where moisture, oil mist, or acid-catalyzed hydrolysis would otherwise produce inconsistent bond strength between the primer and a chlorinated rubber vulcanizate. Production application uses air spray onto preheated steel at 40–60°C, followed by a 15–20 min flash-off and co-vulcanization in a compression press at 150–170°C and 10–20 MPa for 5–12 min. Bond durability is tested according to ASTM D429 Method A rubber-to-metal adhesion, with destruction normally occurring in the rubber matrix rather than at the primer interface; on zinc-nickel coated steel, published data for this specific configuration is limited and type approval requires laboratory coupons prepared with the same surface profile and primer thickness as production components. Compliance is assessed against REACH SVHC restrictions and applicable automotive substance declarations. Terminal components include marine engine mounts, conveyor idler rollers, offshore fender pads, and railway buffer blocks.
Competitive Mowital SB 60 HH prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8615380400285 or mail to sales2@liwei-chem.com.
We will respond to you as soon as possible.
Tel: +8615380400285
Email: sales2@liwei-chem.com
Flexible payment, competitive price, premium service - Inquire now!
Mowital SB 60 HH is a solvent-soluble polyvinyl butyral resin supplied as a low-dust granulate for solvent-borne anti-corrosion primers, gravure and flexographic inks, ceramic decal binders, and structural adhesives. The grade belongs to the B 60 viscosity band; the SB prefix and HH suffix are supplier descriptors that distinguish it from standard B 30 H and B 75 H streams. Manufacturer literature for the corresponding B 60 H product stream lists a solution viscosity of 130–260 mPa·s at 23 °C in 5 wt% ethanol/toluene (1:1), a density of 1.10–1.20 g/cm³ under ISO 1183-1:2019, and a glass transition temperature of 65–70 °C under ISO 11357-2:2020. Residual polyvinyl alcohol is commonly reported as 18–21 wt%; residual vinyl acetate content remains below 3 wt%. Solvent-cast film specimens typically show tensile strength of 28–35 MPa and elongation at break of 100–200% when tested according to ASTM D638-14. Published data for this specific configuration is limited; the current certificate of analysis should be reviewed before production approval.
In solvent-borne formulation, the solution behaviour of SB 60 HH is governed by solvent polarity and resin hydroxyl density. Ethanol and ethyl acetate dissolve the resin readily; aromatic hydrocarbons reduce viscosity and control evaporation. A reference binary solvent blend of 60% ethanol and 40% toluene provides an evaporation profile suitable for roll coating, while gravure inks require ethyl acetate-rich blends with boiling ranges of 75–120 °C. Water addition above 5 wt% in ethanol produces cloudiness and can cause phase separation below 10 °C. On production lines, in-line viscometers are calibrated against a Brookfield RVT at 20 rpm and 23 °C; deviations greater than 10% trigger solvent adjustment rather than resin addition. The resin solution must not be blended with primary or secondary amines in acid-catalysed systems because neutralisation of phosphoric acid alters the pH balance and can destabilise the polyvinyl butyral solution. Compared with low-hydroxyl vinyl chloride copolymers, SB 60 HH provides higher hydroxyl-based adhesion to metal substrates without chlorinated solvent demand. Published data for this specific configuration is limited.
Phosphoric acid-activated PVB wash primers represent the primary industrial use of SB 60 HH. In production, the resin is dissolved at 8–15 wt% in methyl ethyl ketone, ethanol, and aromatic hydrocarbons using a high-shear dissolver with a Cowles blade at 15–20 m/s tip speed. The pigment paste is ground separately to Hegman 6–7 according to ISO 1524:2020. After letdown, the primer is sprayed at 10–20 µm dry film thickness using air-assisted airless equipment with 0.011–0.015 in nozzle orifice. Acid activation is achieved with 0.3–0.8 wt% phosphoric acid based on total formulation. Critical process windows are governed by acid-catalysed acetal hydrolysis; viscosity loss exceeding 10% after 8 h is considered irrecoverable on steel pretreatment lines. Resin and solvent moisture is held below 0.5 wt% to limit hydrolysis rate. Salt spray resistance of a zinc phosphate-containing formulation at 12–15 µm dry film on blast-cleaned steel is assessed under ASTM B117-19 for 240–500 h. Cross-cut adhesion is checked with ISO 2409:2013. Field failure on aluminium coil lines has occurred when acid was charged before complete resin dissolution, producing local gel specks; post-adding acid below 30 °C eliminates this defect. Compared with acrylic and vinyl chloride copolymer wash binders, SB 60 HH requires tighter moisture control but yields improved polar adhesion to aluminium and galvanised steel. Published data for this specific configuration is limited.
Because of its alcohol solubility and controlled pigment wetting, SB 60 HH is also used in gravure and flexographic surface inks for corona-treated polyester and polyolefin films. A reference solvent blend of 70% ethanol, 20% ethyl acetate, and 10% methyl ethyl ketone supports 10–15 wt% resin solids. Ink viscosity is adjusted to 18–22 s on a 4 mm DIN 53211 flow cup at 25 °C. On a production gravure press running at 60–120 m/min, the B 60 molecular weight fraction reduces resin migration into the doctor blade zone and improves rewetting of high-density cells. Blocking resistance is quantified by film-to-film contact under 40 °C and 50% RH for 24 h; failure is defined as measurable ink transfer at 20 g/cm² contact pressure. Pre-drying is required when storage relative humidity exceeds 60%, because absorbed water changes viscosity and promotes roller pickup. Unlike standard low-hydroxyl vinyl chloride copolymers, SB 60 HH does not require chlorinated solvent for complete dissolution and provides measurable polar interaction with corona-treated polypropylene without amine adhesion promoters. Published data for this specific configuration is limited.
In coil coating primers and metal packaging lacquers, SB 60 HH is co-reacted with hexamethoxymethyl melamine at 5–15 wt% melamine on total binder solids. Cure schedules of 15–25 min at 140–180 °C yield solvent-resistant films; methyl ethyl ketone double rub resistance is evaluated under ASTM D5402-19. The hydroxyl content of SB 60 HH increases crosslink density relative to low-hydroxyl PVB and vinyl chloride copolymers, but it reduces one-component package stability. Accelerated ageing at 50 °C for 14 d is used to screen batches; a viscosity increase above 25% indicates premature melamine-hydroxyl reaction. Acid catalyst p-toluenesulfonic acid is added at 0.5–1.0 wt% on total binder. The catalyst must be pre-diluted and introduced at 25–35 °C; local temperature above 60 °C in the mixing zone can produce gel particles. Pigment concentrates are prepared separately on a three-roll mill or horizontal bead mill at 40–50 °C and then let down into the PVB-melamine solution. Differences from higher-molecular-weight B 75 H appear in low-shear application; B 75 H may produce roping at 40–50 s spray viscosity, whereas SB 60 HH can be sprayed at 25–35 s without additional aromatic tail solvent. Published data for this specific configuration is limited.
The following table lists typical incoming inspection parameters for SB 60 HH. The ranges are compiled from established PVB grade literature and are not a substitute for the supplier certificate of analysis.
| Property | Method or equipment | Typical control range |
|---|---|---|
| Solution viscosity, 5 wt% in ethanol/toluene 1:1 | Brookfield RVT, 20 rpm, 23 °C | 130–260 mPa·s |
| Glass transition temperature | ISO 11357-2:2020 | 65–70 °C |
| Density | ISO 1183-1:2019 | 1.10–1.20 g/cm³ |
| Residual ash | ISO 3451-1:2019, 600 °C | ≤0.4 wt% |
| Film tensile strength | ASTM D638-14 | 28–35 MPa |
| Film elongation at break | ASTM D638-14 | 100–200% |
Ceramic decal cover-coats use SB 60 HH as a temporary organic matrix that is removed cleanly during firing. Decal transfer laydown on glazed ceramic is carried out at 60–80 °C under 0.2–0.5 MPa membrane pressure; after screen printing with a 77T mesh, the solvent blend of 80% ethanol and 20% ethyl acetate evaporates within 30 min at 25 °C. Residual ash must remain below 0.4 wt% by ISO 3451-1:2019 to avoid discoloration after firing at 350–550 °C. In reactive hot-melt adhesives, the resin is plasticized with dibutyl phthalate at 15–25 phr; open time is controlled by solution viscosity. Moisture absorption above 2 wt% causes frothing during extrusion. Pre-drying at 60 °C for 4 h is required. Amine-based additives must be excluded from acid-catalysed systems; primary and secondary amines neutralise phosphoric acid and destabilise the PVB solution. Epoxy resins without compatibilizer cause phase separation in high-solids resin solutions. Published data for this specific configuration is limited.
