GSSI® Sealants MB-MAX

1 of 5 products in this brand
GSSI® Sealants MB-MAX is a premier elastomeric butyl rubber sealant designed to meet the critical requirements of metal buildings. It also meets or exceeds all sealing requirements for window glazing, air conditioning, and refrigeration. MB-MAX is extruded on silicone coated paper for easy application. It is produced in many different sizes and lengths to fit all application requirements. The rolls are securely packaged in cartons for convenience in job site storage and export.

Chemical Family: Butyl Rubber

Compatible Substrates & Surfaces: Metal

Features: Easy To Apply, Good Adhesion, High Cohesive Strength, High Temperature Performance, Low Temperature Compressibility, UV Resistant, Wide Temperature Operating Range

Technical Data Sheet
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Enhanced TDS

Identification & Functionality

Features & Benefits

Ready-to-Use Product Features
Product Benefits

GSSI® Sealants MB-MAX offers many qualities that result in a superior seal, greater longevity, and easier application.

Key Features
  • Greater cohesive strength
  • Superior adhesive strength
  • Withstands extreme roof temperatures
  • Superior low temperature compressibility
  • Cold flow resistant
  • Resistant to UV light
  • Seal not affected by normal movement of building
  • Wide service temperature range
  • Extensive inventory of standard sizes
  • Available in custom sizes and lengths

Applications & Uses

Markets
Applications
Application Area
Compatible Substrates & Surfaces
Application Method

Apply MB-MAX to surface directly from roll. Press sealant through the silicone release paper with a smooth, even hand motion. Note: for metal roofing and siding applications, place sealant under the fastener to prevent wind-blown rain from leaking through the fastener holes.

Properties

Technical Data
ValueUnitsTest Method / Conditions
Specific Gravity1.60 - 1.70 g/cm³ASTM D792
Pounds/Gal13.3 - 14.2-ASTM D792
Solids Content1%ASTM C771
Cone Penetration Hardness100dmmASTM D217
Shore A hardness22-ASTM C661
Tensile Strength (10”/minute)16.85psiASTM D412
Elongation (10”/minute)1000%ASTM D412
T-Peel Failure Mode (2”/minute)13.6 (7.03)N/cm (psi)D3330
Yield Strength Failure Mode (1”/minute)14psiASTM C908
Weight Loss 1 week (at 100°C)0.01%ASTM C771
Flow Resistance (149°C/ 300°F)No flow-HBF T-375
Application Properties
ValueUnitsTest Method / Conditions
Application Temperature4 to 50°C-
Service Temperature-40 to 90°C-

Packaging & Availability

Storage Conditions

Shelf life 24 months when stored in original package in cool and dry conditions

Storage & Handling

Shelf Life
24 months