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ST-30

ST-30 is a flexible butyl joint sealant designed for sealing precast concrete, manholes, septic tanks, box culverts, concrete pipes, vaults, and vertical panels. It is permanently flexible, tacky, moisture-resistant, and durable against acidic and alkaline environments. Not for use in expansion joints or moving joints. Available in various sizes and shapes, it meets or exceeds ASTM C990 standards for butyl tapes.

Product Type: Joint Sealant

Application Area: Box Culverts, Construction Joints, Joints, Manholes, Pipes, Precast Concrete, Septic Tanks, Utility Vaults, Vaults, Vertical Panel Structures

Compatible Substrates & Surfaces: Concrete

Chemical Family: Butyl Rubber

Features: Acid Resistant, Alkali Resistant, Chemical Resistant, Crack Resistant, Flexible, Good Weather Stability, Low Temperature Flexibility, Moisture Resistant, No Adhesion Loss, No Shrinkage, Non-Hardening, Quick Installation, Tacky, Wide Temperature Operating Range

Technical Data Sheet

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Identification & Functionality

Chemical Family
Butyl Rubber
Product Type
Joint Sealant
Technologies
Adhesives & Sealants
Product Families
Adhesives & Sealants — Pressure Sensitive Adhesives, Tapes & Labels
Tapes

Features & Benefits

Ready-to-Use Product Features
Acid Resistant,
Alkali Resistant,
Chemical Resistant,
Crack Resistant,
Flexible,
Good Weather Stability,
Low Temperature Flexibility,
Moisture Resistant,
No Adhesion Loss,
No Shrinkage,
Non-Hardening,
Quick Installation,
Tacky,
Wide Temperature Operating Range
Product Features and Benefits

Product Advantages:

ST-30 exhibits cold weather flexibility and shows no adhesion loss or cracking in cold temperatures. It can be applied in a wide range of temperatures and endures extreme outdoor weather conditions. The flexible tape form makes for a watertight seal with fast installation. ST-30 is non-shrinking and non-hardening. It is chemically resistant, showing no deterioration after 30 days exposure and meets or exceeds ASTM C990 Section 6 specifications for butyl tapes. * AASHTO M-198 with the exception of flash point and fire point.

Applications & Uses

Markets
Building & Construction
Applications
Building & Construction — Building Materials
Pipes & Plumbing
Application Area
Box Culverts,
Construction Joints,
Joints,
Manholes,
Pipes,
Precast Concrete,
Septic Tanks,
Utility Vaults,
Vaults,
Vertical Panel Structures
Compatible Substrates & Surfaces
Concrete
Product Applications

Application & Surface Preparation:
All installation surfaces must be clean and dry. MP-150 Primer is recommended for installations below 4°C (40°F). Place exposed surface down and apply along the entire joint, being careful not to stretch the material. Cut off excess and remove release liner. Butt joint cut ends and knead together to complete the seal.

Limitations:

  • Designed for non-moving joints
  • Not intended for expansion joints

Properties

Color (Properties)
Black
Technical Data
ValueUnitsTest Method / Conditions
Butyl Rubber (Hydrocarbon)min. 51%ASTM D297
Ash inert mineral fillermin. 35%AASHTO Till
Specific Gravity (at 77°F)1.15 - 1.40-ASTM D71
Ductility (at 77°F)min. 5cmASTM D113
Compression Index (at 25°C)max. 100lb / in-
Compression Index (at 0°C)max. 200lb / in-
Cone Penetration50 - 120dmm-
Cone Penetrationmin. 30 dmm-
Low Temperature FlexibilityPass-ASTM C765
Elevated Temperature FlowPass-ASTM C765
Flash Point191.0°CASTM D92
Volatile Mattermax. 2% wtASTM 06
Recycled Content (Post-Industrial)max. 7.5%-
Application Properties
ValueUnitsTest Method / Conditions
Application Temperature- 7 to 49°C-
Service Temperature- 40 to 121°C-

Regulatory & Compliance

Quality Standards
ASTM C990, Section 6

Packaging & Availability

Packaging Type
Rolls
Regional Availability
  • North America
Packaging Information

ST-30 is supplied in roll form on easy release liner comprised of either Kraft paper or white plastic.

Storage & Handling

Shelf Life
2 years
Storage and Shelf Life Condition

Product should be stored below 49°C (120°F). Shelf life is 2 years when stored as recommended.