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Adhesives/Binder Resins

Adhesives for wood composites Wood Adhesives

We supply the wood composites industry with an extensive line of adhesives including plywood adhesives; oriented strand board (OSB) resins; hardboard resins; particleboard & medium density fiberboard (MDF) resins; and laminated veneer lumber (LVL) adhesives.

  • Plywood Adhesives - GP Chemicals manufactures both neat resins ready-to-use mixed adhesives. Neat GP® liquid phenol-formaldehyde (PF) resins are available for mills that prefer in-plant mixing of their own adhesive system. RESI-MIX® ready-to-use adhesives combine neat liquid PF resins with extenders and fillers. These adhesive systems work across a broad range of assembly conditions and can be customized to meet product requirements and mill conditions. Patented RESI-MIX Ultra and RESI-BOND® Ultra resin systems give plywood manufacturers the flexibility to glue veneers with a wide range of moisture content, resulting in less waste from rejects, without sacrificing performance. New RESI-BOOST™ technology provides operational savings in terms of lower press temperatures, faster throughput and improved glue spreads while maintaining bond quality.
  • OSB Resins - RESI-STRAN® liquid phenol-formaldehyde (PF) adhesives and WOODWELD® powder PF adhesives are available for this application. RESI-STRAN adhesives are available in face and core resin formulations and can be customized for resin cure speed. WOODWELD resins are also offered in both face and core formulations and typically allow for lower resin application rates.
  • LVL Adhesives - RESI-MIX® ready-to-use mixed adhesives are formulated specifically for LVL. ASTM D2559 and CSA0112.6 certified products are available as well as adhesive systems possessing fast tack development for LVL lay-up lines that employ a prepress operation. The products can be custom-formulated with appropriate extenders to meet challenging mill conditions.
  • Hardboard Resins – GP Chemicals manufacturers a line of phenol-formaldehyde resins and catalysts for use in hardboard applications.
  • Particleboard & MDF Resins – LEAF® low-emission resins for use in particleboard and MDF are offered by GP Chemicals. LEAF C2 resins can be urea-formaldehyde or melamine-urea-formaldehyde and can contribute to compliance with CARB Phase 2. LEAF GB resins may be melamine-formaldehyde, melamine-urea-formaldehyde or phenol-formaldehyde based and can contribute toward meeting various green building standards.
  • Adhesives and Sealants

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    Many of our phenol-formaldehyde and urea-formaldehyde resins and modifiers are used for grit adhesion to various substrates for industrial applications including scrubbing pads and coated abrasives. Other products are used in adhesive coatings and for specialty rubber-to-metal adhesion.

    GP Chemicals also produces a line of triazone products that can extend base polymers, reducing costs while maintaining performance of the end product.

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Product Potential Solutions/Attributes Description

Neutral to acidic cure, may lower emissions

A variety of scavenger, buffering and catalyst technologies are employed with liquid urea-formaldehyde resins for composite panel production. Some of these ...

Neutral to Acidic cure

LEAF® C2 resins are low-emission adhesives that can contribute to compliance with CARB Phase 2 and some green building standards.

Alkaline to Acidic cure, CARB Phase 2 aid

LEAF® GB resins may be melamine-formaldehyde (MF), melamine-urea-formaldehyde (MUF) or phenol-formaldehyde (PF) formulations and can be used in tandem with GP® ...

Alkaline cure

GP Chemicals offers ready-to-use adhesive formulations which can be adjusted to accommodate the differences in customers’ processes. Our plywood ready-to-use and laminated ...

Alkaline Cure

Liquid phenol-formaldehyde adhesives specifically designed for the manufacturing of Oriented Strand Board (OSB) which include RESI-STRAN® 320C02 resin. GP Chemicals specializes in ...

Alkaline Cure

Powder phenol-formaldehyde adhesives specifically designed for the manufacturing of Oriented Strand Board (OSB).

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