1. Phenolic Resin Glue
- Properties:
- Waterproof: Highly resistant to moisture and weather, making it ideal for exterior and marine plywood.
- Durable: Provides strong, long-lasting bonds that can withstand harsh environmental conditions.
- Heat and Chemical Resistant: Suitable for applications where the plywood will be exposed to heat or chemicals.
- Common Uses: Marine plywood, formwork plywood, and high-performance exterior-grade plywood.
2. Urea-Formaldehyde (UF) Glue
- Properties:
- Affordable: Urea-formaldehyde is cost-effective compared to other adhesives.
- Quick Curing: It has a fast curing time, improving production efficiency.
- Limited Water Resistance: Suitable for interior applications, but not ideal for wet or high-moisture environments.
- Common Uses: Interior plywood for furniture, cabinetry, and general construction.
3. Melamine Formaldehyde Glue
- Properties:
- Moderate Water Resistance: Offers better moisture resistance than urea-formaldehyde but is still less durable than phenolic resin.
- Smooth Finish: It helps achieve a smooth, polished surface, making it suitable for decorative applications.
- Stronger Than UF: Offers more durability than urea-formaldehyde.
- Common Uses: Decorative plywood, furniture-grade plywood, and some exterior-grade plywood.
4. Polyurethane Glue
- Properties:
- Waterproof: Extremely resistant to water and weather conditions, making it suitable for both interior and exterior applications.
- Strong and Flexible Bond: Provides a strong bond and allows flexibility, making it ideal for applications that experience movement or stress.
- Durable: Provides a highly durable and resilient bond.
- Common Uses: High-performance plywood applications, including marine plywood and specialty uses requiring strong, waterproof bonds.