PRODUCTS
WetSuit® TROWEL & FIBER TROWEL
Reinforced waterproofing for complex details and high-stress areas
WetSuit® TROWEL and WetSuit® FIBER TROWEL are high-build, trowel-applied waterproofing membranes designed for demanding applications where spray or roller systems are impractical. Engineered for strength, flexibility, and long-term durability, these systems provide seamless waterproof protection across details, penetrations, joints, and irregular substrates.
Product Overview
WetSuit® TROWEL & FIBER TROWEL are cold-applied, elastomeric waterproofing compounds formulated to deliver exceptional adhesion, crack-bridging capability, and resistance to standing water. The Fiber Trowel variant incorporates reinforcing fibres to enhance tensile strength and durability in high-movement or high-stress areas.
Key Features
- Trowel-applied, high-build waterproofing membrane
- Seamless and joint-free application for complex geometries
- Excellent adhesion to a wide range of substrates
- High flexibility to accommodate structural movement
- Fibre-reinforced option for enhanced strength and crack resistance
- Cold-applied system with no heat or flame required
WetSuit® TROWEL – Key Benefits
- Smooth, workable consistency for precise detailing
- Excellent crack-bridging performance
- Ideal for flashings, upstands, penetrations, and transitions
- Forms a durable, elastomeric waterproof membrane
- Compatible with approved WetSuit® primers and topcoats
WetSuit® FIBER TROWEL – Key Benefits
- Reinforced with fibres for superior tensile strength
- Enhanced resistance to mechanical stress and impact
- Ideal for high-movement areas and repairs
- Improved build thickness and structural integrity
- Suitable for areas exposed to ponding water
Suitable Applications
- Roof details and penetrations
- Parapet walls and upstands
- Expansion joints and transitions
- Gutters, drains, and scuppers
- Balconies, podium decks, and terraces
- Repair and refurbishment projects
Substrate Compatibility
- Concrete and masonry
- Cementitious screeds
- Metal substrates
- Asphaltic surfaces
- Existing compatible waterproofing systems
- Use approved WetSuit® primers where required
System Compatibility
- Fully compatible with the WetSuit® waterproofing membrane range
- Designed to work with REFLEX™ and HarcoSil® topcoat systems
- Integrates into complete Ultima Coatings waterproofing assemblies
Application Method
- Applied using steel or rubber trowels
- Builds thickness in a single or multiple passes
- Ideal for confined areas and vertical surfaces
- No hot works required, improving on-site safety
Performance Advantages
- Excellent resistance to weathering and UV exposure
- Strong adhesion reduces risk of delamination
- Flexible membrane accommodates thermal and structural movement
- Long service life with minimal maintenance
Environmental & Safety Benefits
- Cold-applied, solvent-free system
- Low VOC formulation for safer application
- Suitable for occupied buildings
- Reduced installation risk compared to torch-applied systems
Typical System Build-Up
- Approved substrate preparation
- WetSuit® primer (if required)
- WetSuit® TROWEL or FIBER TROWEL application
- Compatible REFLEX™ or HarcoSil® protective topcoat