Description
Sika Polyester Fairing Compound for Marine Repair | Boat Supply Store
Address imperfections and prepare marine substrates efficiently with this rapid-curing polyester fairing compound. Exhibiting exceptional adhesion to fiberglass, SMC, FRP, epoxy, graphite, Kevlar® composites, aluminum, and wood, it cures quickly to facilitate swift project completion. Its low moisture absorption ensures robust performance for both above and below-waterline applications, making it suitable for extensive hull repair projects on vessels operating in saltwater environments like Galveston Bay.
Key Features
- Exceptional Adhesion to diverse marine substrates
- Very Quick Setting for accelerated repairs
- Minimal Shrinkage, ensuring dimensional stability
- High Service Temperature resilience
- Excellent Finishing and Machinability for smooth surfaces
- Accepts Virtually all types of finishes for seamless integration
- Low Moisture Absorption for above or below-waterline longevity
- Smooth Workable Paste with feather edge capability
Specifications
| Product Specifications | |
|---|---|
| Material Type | Polyester Filler and Fairing Compound |
| Color | White |
| Cure Speed | Very Quick |
| Adhesion | Exceptional |
| Moisture Absorption | Low |
| Application Area | Above and Below Waterline |
| Substrate Compatibility | Fiberglass, SMC, FRP, Epoxy, Graphite, Kevlar® Composites, Aluminum, Wood |
| Requires Hardener | Yes (BPO Hardener sold separately) |
| Size | Quart |
Who This Is For
Boat owners, marine repair professionals, and DIY enthusiasts undertaking fiberglass repair, gel coat blister repair, or filling cloth imprints on FRP panels. This compound is for those requiring a fast-setting, sandable, and durable solution for both above and below-waterline applications.
How It Compares
| Feature | Sika Polyester Fairing Compound for Marine Repair | Competitor |
|---|---|---|
| Product Type | Polyester Fairing Compound | Waterproof Marine Filler, Epoxy Resin System |
| Application | Above/Below Waterline | Above and Below Waterline, Above and Below Waterline |
| Cure Speed | Very Quick Setting | Fast Cure, Fast Hardener |
| Sanding Ease | Easier to sand than conventional fillers, can be finished to a feather edge | Good sanding properties, Can be sanded after curing, but generally harder than polyester fillers |
| Adhesion to Fiberglass | Exceptional | Excellent, Excellent |
Common Concerns Answered
What is the primary advantage of SikaBiresin® AP077?
Its unique combination of rapid cure, exceptional sandability to a feather edge, and excellent adhesion to a wide range of marine substrates makes it ideal for efficient, high-quality fairing and repair work above and below the waterline.
Is the hardener included with the fairing compound?
No, the BPO hardener required for SikaBiresin® AP077 must be purchased separately. This allows for customizable stock of necessary components.
Can SikaBiresin® AP077 be used for cosmetic repairs on my boat?
Yes, its excellent finishing and machinability, combined with its ability to accept virtually all types of finishes, make it perfect for achieving a smooth, visually appealing repair on gel coat and fiberglass surfaces.
Frequently Asked Questions
What is SikaBiresin® AP077 Polyester Fairing Compound used for?
It is primarily used for fairing and filling imperfections on marine substrates such as fiberglass, wood, and composites, preparing surfaces for painting or finishing both above and below the waterline.
Can SikaBiresin® AP077 be used below the waterline?
Yes, its low moisture absorption makes it suitable and durable for applications below the waterline, ensuring long-term performance in submerged conditions.
What is the cure time for SikaBiresin® AP077?
SikaBiresin® AP077 is designed for very quick setting, allowing for rapid progression through the repair process.
What surfaces does SikaBiresin® AP077 adhere to?
It provides excellent adhesion to a wide range of substrates including fiberglass, SMC, FRP, epoxy, graphite, Kevlar® composites, aluminum, and wood.
Does SikaBiresin® AP077 require a separate hardener?
Yes, SikaBiresin® AP077 requires a BPO hardener, which must be purchased separately, to initiate the curing process.
