PU (Polyurethane) Sealant
PU (Polyurethane) Sealant (Betoseal 1PU) is a single-component, moisture-curing elastomeric sealant engineered for movement joints in precast concrete, facades, tilt-up panels, and perimeter sealing around windows and doors.
Product Overview
This product range offers advanced material performance and long-term durability. Formulated to meet high standards of protection and reliability under various site conditions. PU (Polyurethane) Sealant (Betoseal 1PU) is a single-component, moisture-curing elastomeric sealant engineered for movement joints in precast concrete, facades, tilt-up panels, and perimeter sealing around windows and doors.
Best-fit Applications
- • Sealing expansion and contraction joints in precast concrete panels and facades
- • Perimeter joint sealing around window and door frames, louvers, and architectural claddings
- • Industrial floor joints, pedestrian walkway control joints, and roof parapet joints
- • Waterproofing expansion joints in balconies, terraces, and podium decks
Technical Benefits
- • Single-component ready-to-use formulation eliminates mixing errors
- • High tear and weather resistance with permanent elasticity (movement +/-25%)
- • Bubble-free curing mechanism even under high ambient relative humidity
- • Excellent adhesion to concrete, brick, aluminum, wood, and steel substrates
Technical & Performance Specifications
Application Guidelines & Installation Method
Step 1: For sealants, clean and dry the joint; apply primer where required; install the specified backer rod to the correct depth; apply continuously without air gaps; tool to a smooth finish; then allow adequate curing and protect from water, traffic and damage.
Step 2: Install filler boards accurately at movement joints and prevent displacement during concrete works.
Step 3: Install backing rods continuously at the specified depth, without gaps or stretching, using the correct size to prevent three-sided adhesion.
Standard Compliance
Products
Betoseal 1PU
Polyurethane Joint SealantsExplore individual technical documents, specifications, and compatible systems for this named grade.
Technical Submittals & Documents
Current TDS
Version: 2026.1 • Released: Feb 2026SDS
Version: 2026.1 • Released: Feb 2026Technical Validation Required
Coverage rates, curing periods, and chemical resistance parameters must be verified against Geobit's project-specific submittals. Do not rely on third-party marketing claim sheets.
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