CRL Black 777 Butyl Rubber Sealant

Cartridge Contents

11 oz.(325.3 ml)

Case Quantity

30

Finish/Color

Black

Pallet Quantity

1440

Shelf Life

12 Months

Durable CRL 777 Butyl Rubber Sealant – Black | Weatherproof, Flexible, Multi-Surface Adhesion

Key Features:

• Strong adhesion to wood, glass, metal, masonry, concrete, and select plastics
• Outstanding weather resistance for long-lasting exterior protection
• Easy to apply and tool for professional results
• Withstands joint movement of ±10% without compromising seal
• UV-resistant for enhanced durability

Product Overview:
CRL 777 Butyl Rubber Sealant is a high-performance, solvent-based sealant specially formulated with age-resistant polymers. Designed for both commercial and residential exterior use, it offers excellent adhesion on a variety of clean surfaces. Its superior flexibility and weather resistance make it ideal for sealing joints exposed to varying temperatures and environmental conditions.

This black butyl rubber caulk features a UV-resistant formula and delivers long-lasting waterproofing, even under harsh conditions. Perfect for applications that demand a durable, flexible sealant that remains effective through temperature extremes and joint movement.

Recommended Applications:

• Under thresholds and sill cans
• Around screw heads and hidden joints
• Between metal building panels
• Under aluminum siding and gutters
• Around wall-mounted air conditioning units

Application Details:

• Application Temperature: 40°F to 120°F (4°C to 49°C)
• Service Temperature: -20°F to 200°F (-29°C to 93°C)
• Paintable After: 24 hours

Comparable Sealants:

• CRL 888
• Adco B-100, AP-77
• DAP® Butyl-Flex
• OSI® SBR-100
• Pecora® BC-158
• PTI 757
• PSI 301
• Tremco® Butyl Sealant

Certifications:

• Meets Federal Specs: TT-S-001657 Type 1, TT-C-1796A
• ASTM C 1311
• AAMA 808.3-05
• USDA Certified

Important Usage Notes:
Not suitable for horizontal decks, patios, or terrace joints subject to heavy wear. Avoid use in window glazing or any area requiring non-skinning sealant. Contains solvents – a mild mineral spirit odor is normal during application. Do not use near ventilation or refrigeration systems that will be activated shortly after application.

Installation Instructions

CRL Sealant Basic Uses and Limitations

Safety Data Sheets

Safety Data Sheets 777BL.pdf

Specifications

Sealant Requirement Estimator Chart