Sika SikaBiresin AP077 White Gallon BPO Hardener Required

SikaBiresin® AP077 is the ultimate polyester filler and fairing compound designed specifically for marine and boating applications. Whether you're repairing a gel coat blister, restoring fiberglass parts, or refining FRP panels, AP077 provides a smooth, workable paste that cures quickly to accelerate your repair and finishing processes.

Key Features

• Exceptional Adhesion: Bonds effectively to a wide range of substrates including fiberglass, SMC, FRP, epoxy, graphite, Kevlar® composites, aluminum, and wood.
• Rapid Setting Time: Fast curing minimizes downtime and speeds up project completion.
• Minimal Shrinkage: Maintains dimensional stability, reducing the need for frequent touch-ups.
• High Service Temperature: Performs reliably under varying temperature conditions typical in marine environments.
• Excellent Finishing and Machinability: Easily sandable to a smooth finish and can be precision machined for detailed work.
• Versatile Finish Compatibility: Accepts virtually all types of coatings and decorative films, allowing for diverse customization.
• Low Moisture Absorption: Ideal for both above and below waterline applications, preventing water-related issues.

Applications

SikaBiresin® AP077 is versatile and suitable for a variety of marine repair and finishing tasks, including:

• Gel coat blister repair
• Fiberglass parts repair
• Filling cloth imprints on FRP panels

Advantages for Marine Use

Advantage	Description
Exceptional Adhesion	Ensures strong bonds to multiple surfaces common in marine settings, enhancing durability.
Rapid Setting	Allows for quicker project turnaround, essential for timely marine repairs.
Minimal Shrinkage	Maintains structural integrity and reduces the likelihood of rework.
High Service Temperature	Suitable for the fluctuating temperatures encountered on boats and marine vessels.
Excellent Finishing	Achieves a smooth, professional finish that meets high marine aesthetic standards.
Versatile Finish Compatibility	Supports a wide range of marine-grade coatings and decorative films for customized finishes.
Low Moisture Absorption	Prevents moisture-related degradation, making it ideal for both submerged and exposed areas.

Required Component

To achieve optimal results, SikaBiresin® AP077 requires the use of SikaBiresin® AP077 White Gallon BPO Hardener.

Product Specifications

Property	Specification
Type	Polyester Filler and Fairing Compound
Color	White
Packaging	1 Gallon
Hardener	SikaBiresin® AP077 White Gallon BPO Hardener

Why Choose SikaBiresin® AP077?

For marine and boating professionals, reliability and performance are paramount. SikaBiresin® AP077 delivers outstanding adhesion, quick curing times, and a smooth finish, ensuring your repairs stand the test of time against harsh marine conditions. Its ease of application and compatibility with various substrates and finishes make it a top choice for quality-conscious boaters and marine technicians alike.

Orders of physical products placed by 3 PM EST M-F typically ships the same day, if all requested items are in stock. Weekend orders will typically ship on Monday.

Shipping takes 2-7 days.

We currently ship to the Contiguous 48 States.

Life of Sailing merch is custom made for the customer after an order is placed. Total turnaround is typically 7-14 days from order to doorstep.