Adhesive + panel · Made in the USA
Doors, wrap, floors, textiles, spines. Same glue that laminates the panel, sold as adhesive when you run the line — catalog grade, custom, or toll.
Moisture-cure reactive hot melt for the jobs that fail EVA — and liquid PU, PUD, and 2K where the line needs them. We specify and sell. The sandwich panels next door are hot-melt PUR only — no liquid in the laminate.
Family A · hot-melt PUR
Moisture-cure reactive hot melt. Applied molten, then cross-links with moisture into a thermoset. Typical uses:
Family B · not used in PurComposite panels
Sold as adhesive. The laminator does not put liquid PUR in sandwich panels — hot-melt composites only.
Named HMPUR grades. Viscosity is shown where it is on the public TDS. SDS/TDS on request.
| Grade | Open time | Viscosity | What it is for |
|---|---|---|---|
| 8600 | 4 min | 4,000 cps @ 250°F · run 235–275°F | Fast tack. Cabinets, steel, wood, EPS, cores. Extrusion or roll coater. 10 hr cure. |
| 8463 | 3–4 min | 9,000 cps @ 250°F | Very fast tack, high green strength. RV panels / RV construction. 8 hr cure. |
| 8493 | 45 min+ | 9,000 cps @ 250°F | Long open. EPS foam; flexible bonds to steel, wood, foams. 2–4 hr cure. |
| 8927 | 7 min | On request | Composite panel lamination. Honeycomb, EPS, steel, wood, laminate. Roller. Low initial melt point. |
| 8940 / 8940M | 9 min | On request | Same substrates as 8927. Both 8940 and 8940M are published for RV panel work. |
| 8937 | 2–3 min | On request | Carpet, felt, honeycomb, steel, ABS, PVC. Automotive assemblies. Roller. Low initial melt point. |
Sold as adhesive. Not used in PurComposite sandwich panels — the plant constraint is hot-melt PUR only, no resin or liquid in the laminate.
General-purpose liquid PUR. Carpet, wood, foam, metal, most plastics. Permanent rigid bond. Not for vinyl (PVC), PP, PE, or polyolefins. Not tacky when first applied — clamp during initial cure. Family copy: assembly time 20–30 minutes; apply above 50°F.
Lamination of panel products. EPS foam, honeycomb, steel, wood, laminate. Roller applicator. Year-round processing is possible. Still a liquid — not the chemistry in the sandwich stack.
Water-borne polyurethane dispersions for vacuum-forming vinyl and PVC foils to particle board (kitchen doors, furniture, 3D laminating). Not used in PurComposite sandwich panels.
Workhorse membrane-press grade. Vinyl/PVC foils to particle board. Wide operating window. Increased bond, heat, and water resistance with the isocyanate hardener.
Same process, specified for high-gloss vinyl/PVC foils. Heat and water resistance.
Membrane pressing / vacuum forming vinyl/PVC foils to particle board. Doors, cabinets, 3D. No hardener required.
7-560 — isocyanate crosslinker; water, heat, bond. 7-1001 — aliphatic PU crosslinker at 5% mix; hard-to-bond PS foam, cedar, plastics; pot life > 8 hr; non-yellowing.
Not a panel-laminating adhesive. 2K grades for floor and wall install, sold through PurComposite.
Two-component polyurethane for floor-covering materials on smooth, solid surfaces. Mix A+B; cures to a tough, flexible film.
Two-part, solvent-free polyurethane for installing wall panels on clean, dry, sound walls. Non-absorbent surfaces, and absorbent surfaces in severe-use / wet / temperature-swing areas.
Not an adhesive. Cleaning compound to purge moisture-cure PUR from hot-melt applicators so cured melt does not clog machines and tips. Apply 250–350°F. 7,000 cps at 350°F.
Match by TDS, SDS, or the grade you already run. Pigmented reactive hot melts and prepolymer options. Toll batches 10 lb to 10,000 lb. PurComposite sells it. Use the quote form — choose PUR adhesive (HMPUR), liquid PU, or toll batch.
PurComposite runs polyurethane adhesive as toll batches, from 10 pounds to 10,000 pounds, in hot melt PUR or liquid PU. We can blend to your formula or to a grade you already run. We can also coat or laminate your substrate with that adhesive on our line. Send the grade you run now or the spec you need to hit, and we'll quote the batch. Use the quote form and choose toll batch, or call 800-249-0337.
A 100% solids, moisture-curing polyurethane. You apply it hot. It sets like a hot melt, then cross-links with ambient moisture into a thermoset. That cross-link is the heat, cold, and moisture resistance. Liquid PU is the room-temperature cousin: not tacky when first applied, so parts need clamp or press during initial cure.
HMPUR: 8600, 8463, 8493, 8927, 8940/8940M, 8937. Liquid: 8730, 8932. PUD: 7-859, 7-866, 7-883WH plus hardeners 7-560 and 7-1001. 2K: 7-3029, 7-3040. Purge: PUR-Purge-1000.
No MOQ on panels. Adhesive toll starts at 10 lb. The panel plant uses hot-melt PUR only — no liquid in the laminate. Ask for adhesive, panel, or both on one quote.
Yes. We specify and sell. Adhesive is reacted and panels are laminated in the USA. Custom formulate when the catalog grade is wrong.
Generally no, unless corona-treated. We qualify the bond on your substrates.