Sika SikaBiresin AP077 + BPO Cream Hardener - White - Quart

The SikaBiresin® AP077 + BPO Cream Hardener is a high-performance gelcoat repair system designed specifically for marine and boating applications. Whether you're repairing your boat's hull above or below the waterline, this hardener ensures a durable and seamless finish that withstands harsh marine environments.

Key Features

• Comprehensive gelcoat repair system tailored for marine use
• Simple application process with easy sanding for a smooth finish
• Exceptional heat resistance up to 400°F (209°C), ideal for high-temperature environments
• Compatible with virtually all types of marine finishes for versatile use
• Low moisture absorption, making it suitable for both above and below the waterline repairs
• Minimal shrinkage or sinking upon curing ensures accurate restoration
• Strong bonding capabilities with epoxy, vinyl ester, polyester, and various marine substrates
• Quick-setting cure time accelerates the repair and finishing process

Technical Specifications

Feature	Description
Heat Resistance	Up to 400°F (209°C)
Cure Time	Quick-set for faster completion
Compatibility	Epoxy, Vinyl Ester, Polyester, and various substrates
Moisture Absorption	Low moisture absorption for underwater and above-water applications

Usage Instructions

To achieve the best results, follow these steps:

1. Clean and prepare the surface by removing any contaminants.
2. Apply the SikaBiresin® AP077 gelcoat evenly to the repair area.
3. Mix the BPO Cream Hardener thoroughly before applying.
4. Combine the gelcoat and hardener according to the instructions.
5. Allow the mixture to cure properly, ensuring minimal shrinkage.
6. Sand the cured gelcoat to achieve a smooth and flawless finish.

Applications

SikaBiresin® AP077 + BPO Cream Hardener is ideal for a wide range of marine repair tasks, including:

• Hull repairs both above and below the waterline
• Deck and cabin restoration
• Masts, booms, and other structural components
• Cosmetic touch-ups and structural bonding

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

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.