Wood Glue Tytan PB-350 D4 Polyurethane 800g — Waterproof Structural Wood Adhesive

Tytan PB-350 D4 Polyurethane 800g is a moisture-curing structural wood adhesive formulated for demanding joinery and timber construction tasks. Supplied in an 800 g cartridge, this polyurethane glue creates strong, durable bonds that resist moisture and temperature variations. It is intended for use where a D4-class adhesive is required, offering gap-filling properties, high initial tack and long-term performance for both interior and exterior wood connections.

Advantages

The adhesive provides high initial tack and develops high bond strength after curing, ensuring reliable structural joints. Its moisture-curing polyurethane chemistry enables excellent resistance to water and variable humidity, making it suitable for damp environments. The formulation also fills small gaps between uneven surfaces and adheres to a wide range of wooden substrates used in furniture, staircases and exterior carpentry.

Suitable for

• Structural timber joints and gluing of beams and posts
• Furniture assembly and edge bonding
• Stair construction and repair
• Outdoor wooden elements exposed to moisture (claddings, frames, pergolas)
• General woodworking repairs where gap-filling and waterproofing are needed

When it may not be suitable

This polyurethane glue cures by reacting with moisture and may not perform as intended on completely dry substrates without ambient or substrate moisture; pre-wetting or ensuring normal workshop humidity is recommended. It is not formulated for use on non-porous substrates such as glass or metal where specialized adhesives would be required.

Key specifications

• Adhesive type: polyurethane, moisture-curing
• Performance class: D4 (suitable for high moisture exposure)
• Packaging size: 800 g cartridge
• Functional properties: gap-filling, high initial tack, water-resistant after curing
• Typical applications: structural wood bonding, joinery, repairs

How to use

Prepare bonding surfaces by removing dust, grease and loose particles. Apply adhesive evenly from the cartridge to one or both mating surfaces, maintaining contact pressure after assembly to ensure good wetting and penetration. For wide gaps, apply sufficient adhesive to fill the space; clamp or secure parts until the adhesive cures. Allow curing time according to ambient humidity and temperature—higher humidity speeds curing. After curing, excess adhesive can be removed mechanically; solvent removal is not effective once cured.

What to consider before purchase

• Intended exposure: choose D4-class adhesives for permanent damp or exterior conditions
• Surface condition: porous wooden substrates bond best; non-porous materials may need primers or different adhesives
• Application tooling: compatible cartridge gun required for 800 g cartridges
• Storage and shelf life: store in cool, dry place and follow manufacturer storage recommendations

Usage recommendations

Use on slightly moistened wood or in environments with normal relative humidity to ensure reliable cure. Apply even pressure and allow sufficient curing time before subjecting joints to load or weather exposure. When working outdoors, protect fresh joints from direct rain during initial cure.