Premium Polyester Resin Gallon

Premium Polyester Lay-Up Resin

Fiberglass Supply Depot Premium Polyester Lay-Up Resin is a professional-grade DCPD/ISO low-profile laminating resin formulated to provide the ideal balance of strength, flexibility, and ease of use. By combining the low-shrink properties of DCPD technology with the durability and performance of premium isophthalic polyester resin, this resin delivers excellent laminating characteristics without the brittleness often associated with conventional DCPD resins. 

Designed for fiberglass lay-up, marine repair, composite fabrication, and general fiberglass construction, this resin offers exceptional wet-out properties, helping fiberglass mat, cloth, and woven reinforcements saturate quickly and thoroughly. Its superior sag resistance makes it ideal for vertical and overhead applications, while the low-profile formulation minimizes print-through for smoother finished surfaces. 

Product Features

• Premium DCPD/ISO polyester laminating resin
• Excellent fiberglass wet-out characteristics
• Superior sag resistance
• Ultra-low print-through
• Low shrinkage formulation
• Outstanding impact resistance
• Extended working and trimming times
• Ideal for marine and industrial fiberglass applications
• Compatible with standard MEKP catalyst systems
• Suitable for hand lay-up fiberglass fabrication 

Common Applications

• Boat hull repairs
• Deck and transom repairs
• Fiberglass lay-up and fabrication
• Marine construction
• Composite part manufacturing
• Automotive fiberglass repairs
• RV and camper repairs
• Industrial fiberglass components

Catalyst Information

This resin requires MEKP catalyst for proper curing. Typical gel times at approximately 72°F are:

• 1% MEKP: 18–20 minutes
• 1.5% MEKP: 13–14 minutes
• 2% MEKP: 9–10 minutes

Gel times will vary depending on temperature, catalyst percentage, and environmental conditions. 

Why Choose Our Premium Lay-Up Resin?

Unlike general-purpose polyester resins, this advanced low-profile formulation offers improved laminate quality, reduced shrinkage, superior impact resistance, and better cosmetic appearance. The result is a stronger, smoother fiberglass laminate that is easier to finish and more resistant to cracking and print-through. 

Storage Recommendations

Store resin in a cool, dry location away from direct sunlight and excessive heat. Proper storage helps maintain product consistency and performance. 

Need help selecting the proper catalyst amount or fiberglass reinforcement? Contact Fiberglass Supply Depot at 772-464-0808.

Click For MEK-P Catalyst Chart