Match the right adhesive to your materials for the strongest bond. Covers epoxy, polyurethane, CA glue, and more for various surfaces.
| Material | Best Choice | Good Alternative | Avoid |
|---|---|---|---|
| Metal | Epoxy (2-part) | Polyurethane, Metal CA | Construction adhesive |
| Hard Plastics | Plastic epoxy, Plastic cement | CA glue | Hot glue |
| Damp Concrete | Polyurethane | Wet-rated epoxy | CA glue, Regular construction adhesive |
| Rubber/Flexible | Flexible polyurethane | Contact cement, Flexible epoxy | Rigid epoxy, CA glue |
| Wood to Wood | Wood glue (PVA), Polyurethane | Epoxy | CA glue (too brittle) |
| Glass | Clear epoxy, UV-cure | CA glue (thin surfaces) | Construction adhesive |
Best For: Metal, glass, ceramics, hard plastics, wood, concrete
Advantages:
Disadvantages:
Surface Prep: Clean, dry, roughened surface for best adhesion
Cure Time: 5 minutes to 24 hours depending on formulation
Best For: Smooth, non-porous surfaces needing instant bond
Advantages:
Disadvantages:
Surface Prep: Clean, dry, smooth surfaces, tight fit essential
Pro Tip: Use CA accelerator spray for instant cure
Best For: Wood, drywall, foam board, masonry, subfloors
Advantages:
Disadvantages:
Common Types:
Best For: Multi-material bonds, outdoor use, damp conditions, flexible materials
Advantages:
Disadvantages:
Surface Prep: Clean surface; lightly dampen for faster cure
Popular Brands: Gorilla Glue (original), Titebond Polyurethane
Contact Cement
Best For: Laminates, veneers, rubber, leather
Method: Apply to both surfaces, let dry, press together for instant permanent bond
Plastic Welding Cement
Best For: PVC, ABS, acrylic (must match plastic type)
Method: Solvent melts plastic surfaces, creating chemical weld
Silicone Adhesive
Best For: Flexible seals, glass, aquariums, high-temp applications
Note: Not paintable, primarily a sealant with bonding properties
Hot Melt Glue
Best For: Crafts, temporary bonds, light-duty applications
Note: Not suitable for structural or outdoor use
Problem: Bond breaks under stress
Solution: Use stronger adhesive (epoxy) or redesign joint for mechanical support
Problem: Adhesive doesn't cure
Solution: Check expiration date, ensure proper mixing, verify temperature conditions
Problem: Bond breaks with temperature changes
Solution: Use flexible adhesive (polyurethane) that can accommodate expansion/contraction
Problem: Plastic "melts" or fogs
Solution: Wrong adhesive - use plastic-safe formulas, avoid solvent-based on sensitive plastics
This comprehensive adhesive compatibility matrix helps DIYers and professionals choose the right glue or bonding agent for any material combination. Whether you're bonding metal to metal, repairing plastic, working with wet concrete, or joining dissimilar materials, selecting the correct adhesive is critical for creating strong, lasting bonds that won't fail under stress or environmental conditions.
Different adhesive chemistries excel with different materials and applications. Epoxy provides the strongest bonds for rigid materials, polyurethane works on damp surfaces and flexible joints, CA glue (super glue) offers instant bonding for smooth surfaces, and construction adhesive excels at gap-filling wood and masonry applications. This guide covers the advantages, limitations, and proper surface preparation for each adhesive type.
Using the wrong adhesive is one of the most common causes of project failures. This reference helps you avoid wasted materials and failed repairs by matching adhesive properties to your specific bonding requirements, material types, and environmental conditions.
Selecting the right adhesive ensures strong, durable bonds and prevents project failures. This guide helps you work confidently with any material combination.