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This Warmup Underfloor Heating Primer 1L is a ready-to-use, solvent-free primer that helps surfaces bond properly before installing underfloor heating, levelling compounds, or tile adhesive. It works on both absorbent and non-absorbent surfaces like concrete, timber, tiles and screeds. Quick to dry and easy to see with its purple colour, it's suitable for Warmup systems like StickyMat, DCM-PRO, Nexxa-12, and Total-16.

Key Features

• Enhances adhesion for Warmup Peel & Stick systems, levelling compounds, and tile adhesives
• Works on a wide range of surfaces: concrete, screeds, timber, vinyl, tiles, stone, and more
• Ideal for use with Warmup systems including DCM-PRO, StickyMat, Nexxa-12, Total-16
• Suitable for absorbent and non-absorbent substrates, including heated floors
• Deep-penetrating performance on porous surfaces (dilute 1:1 with water)
• Provides a strong bond on non-porous surfaces when applied undiluted
• Solvent-free and low VOC, making it safe for indoor environments
• Purple colour for easy visual confirmation of application coverage
• Ready-to-use, single-component formula for easy application
• Fast drying time

Technical Information

• Porous Substrate Coverage: 20m²/l (Diluted 1:1 with Water)
• Non-Porous Substrate Coverage: 14m²/l (Undiluted)
• Application Temperature: 15°C - 25°C
• Drying Time: 30 - 60 Minutes
• Colour: Purple
• Quantity: 1L

Storage

• Shelf life of 12 months when stored correctly (10°C–25°C, frost-free, out of direct sunlight)

Approvals

• TRG5 610 - Solvent-free
• GISCODE D1
• EC1-PLUS