PITTSEAL® 444Nˢ

Description

PITTSEAL® 444NS Sealant is a non-curing butyl sealant designed for sealing joints in FOAMGLAS® insulation systems and for sealing protrusions and metal jacket laps. Compatible with various coatings, it provides long-lasting, flexible sealing for industrial insulation applications, ensuring effective moisture and vapor protection.

Specifications

Color: Dark Gray
Density: 1.40 ± 0.05 kg/L (11.68 ± 0.45 lb/gal)
Solids Content: 93% by volume
VOC Content: Maximum 80 g/L (0.67 lbs/gal)
Flash Point: 149°C (300°F)
Service Temperature Range:
- Maximum Intermittent: 122°C (250°F)
- Maximum Continuous: 82°C (180°F)
- Minimum: -150°C (-238°F)
Water Vapor Permeability: 0.00 perm-in (ASTM E96, Wet Cup)

Features

Non-Curing and Flexible: Retains flexibility and does not harden, allowing for natural expansion and contraction in insulation joints.
Superior Moisture Barrier: Ensures effective moisture and vapor sealing for FOAMGLAS® insulation systems.
Easy Application: Can be applied with a trowel, knife, or caulking gun for a uniform seal.
Adaptable to Temperature Extremes: Performs reliably across a wide range of temperatures, from cryogenic to high-heat environments.

Certifications & Compliance

Safety Standards:
- Meets VOC emissions requirements of LEED IEQc4.1 (2009) and SCAQMD Rule 1168 (October 6, 2017) for adhesives and sealants.
- Certified for stainless steel service per MIL-I-24244, ASTM C795, and NRC Regulatory Guide 1.36.
Environmental and Storage:
- Store in a cool, dry area, protecting from water, heat, and direct sunlight.