Description
Flexitec 2020 Primer – High-Performance Roof Primer for Maximum Adhesion
Ensure your roofing system performs flawlessly with Flexitec 2020 Primer — a high-performance primer designed to deliver optimal adhesion and curing for Flexitec 2020 resin systems.
Formulated for a wide range of substrates, this primer is essential for preventing under-curing and ensuring a strong, long-lasting bond on porous and challenging surfaces.
Essential Preparation for Reliable Waterproofing
- Designed for Porous Surfaces – Ideal for concrete, brickwork, plywood & insulation boards
- Prevents Under-Curing – Ensures proper resin performance and durability
- Wide Substrate Compatibility – Suitable for bituminous, cementitious, timber & PVC single-ply
- Improves Adhesion Strength – Reduces risk of system failure
- Consistent Coverage – Reliable application across varying surface types
- Part of Flexitec 2020 System – Works seamlessly with resin applications
When Is Primer Required?
Primer is essential for porous or absorbent surfaces to ensure the resin cures correctly and bonds effectively.
✔ Required for:
- Concrete and cementitious surfaces
- Brickwork and masonry
- Plywood and timber decks
- Tissue-faced insulation boards
❌ Not required for:
- GRP surfaces
- ResTrims
Application Guidelines
- Apply in dry conditions only
- Suitable temperature range: 5°C to 30°C
- Do not apply if rain is expected or temperatures may fall outside range
- Apply evenly across the surface before resin application
Coverage & Usage
- Coverage Rate: Approx. 3.5 – 5.3 m² per kg
- Additional Allowance: Add 10% extra for rough or highly porous surfaces
Ideal Applications
- Flat roof overlays and new deck installations
- Porous substrates requiring resin bonding
- Residential and commercial roofing systems
- Timber, concrete, and insulation-based roof builds
Product Specifications
- Product Type: Roofing adhesion primer
- Compatibility: Flexitec 2020 resin system
- Application Temperature: 5°C – 30°C
- Coverage: 3.5 – 5.3 m²/kg (depending on surface)
⚠ Important: Hardener sold separately – required for Flexitec 2020 system
Why Use Flexitec 2020 Primer?
Using the correct primer is critical to achieving maximum adhesion, proper curing, and long-term waterproofing performance—helping you avoid costly failures and repairs.
Frequently Asked Questions
Do I need primer for Flexitec 2020?
Yes, it is essential for porous and absorbent surfaces to ensure proper bonding.
Can it be used on all substrates?
It works on most roofing substrates, including timber, concrete, and PVC single-ply.
Is primer required on GRP surfaces?
No, GRP and ResTrims do not require priming.
How much coverage does it provide?
Typically 3.5 to 5.3 m² per kg, depending on surface porosity.
What happens if I skip primer?
You risk poor adhesion and under-curing, which can lead to system failure.
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