SpEC

SpECtite PU-Flex Primer

Single component, water-based SBR primer sealer.

SpECtite PU-Flex Primer is a high-performance, single-component primer sealer formulated from SBR copolymer resins. Designed for both interior and exterior applications, it effectively seals porous cement-type substrates, ensuring optimal adhesion for subsequent coatings. Its quick-drying, water-based composition offers excellent sealing properties while being environmentally friendly.
This primer enhances the overall performance of waterproofing systems and self-levelling products.
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Technical Details

SpECtite PU-Flex Primer is typically utilized in various applications that require effective sealing and priming solutions. Typical uses include:
– Sealing porous cement-type substrates
– Priming boards prior to applying coatings
– Enhancing adhesion for waterproofing systems
– Preparing surfaces for self-levelling products
– Suitable for both interior and exterior environments
SpECtite PU-Flex Primer offers a range of advantages that enhance its suitability for various construction applications. Its unique formulation provides excellent performance characteristics, making it an ideal choice for sealing and priming porous surfaces.
– For interior and exterior use
– Very good sealing properties
– Excellent foundation for cementitious waterproofing and self-levelling products
– Very good adhesive strength
– Moisture vapour permeable
– Quick drying
– Almost odourless
– Water based – Environmentally friendly
SpECtite PU-Flex Primer is engineered for superior performance. Below are the key technical specifications that define its capabilities:
Typical Results @ 20°C
Colour White/Clear
Specific Gravity 1.0
Drying Time 30 – 60 minutes
Overcoating Interval 2 – 48 hours
Application
SpECtite PU-Flex Primer is designed for optimal application to ensure peak performance. It can be applied by brush or roller at a rate of 7 – 10 m²/litre. On very porous substrates, a second coat of primer may be necessary if absorption is noted to be high.
Surface Preparation
It is essential that adequate preparation is carried out prior to the application of SpECtite PU-Flex Primer. The primer/sealer must completely seal the surface; otherwise, air release will cause bubbles to form in subsequent layers of coatings.
Drying Time
Allow the primer to become touch dry. The drying time typically ranges from 30 to 60 minutes, depending on environmental conditions.
Overcoating Interval
The overcoating interval for SpECtite PU-Flex Primer is between 2 to 48 hours, allowing flexibility based on project timelines and traffic conditions.
SpECtite PU-Flex Primer is available in convenient packaging options for ease of use and application:
– 5 litre packs
– 18 litre packs
Coverage rate: 7 – 10 m²/litre

For warranty information regarding SpECtite PU-Flex Primer, please contact our SMCC team using any of the available contact methods on this page for more details.

Product FAQ

SpECtite PU-Flex Primer can be applied to porous cement-type substrates and boards.
SpECtite PU-Flex Primer typically dries within 30 to 60 minutes.
The coverage rate of SpECtite PU-Flex Primer is 7 – 10 m²/litre.
Adequate surface preparation is essential. Ensure the substrate is clean, free of dust, oil, and moisture to allow for proper adhesion. The primer must completely seal the surface to prevent air release, which can cause bubbles in subsequent coatings.
Yes, SpECtite PU-Flex Primer is water-based and environmentally friendly.
The best tools for applying SpECtite PU-Flex Primer are a brush and roller.

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SpECtite PU-Flex Primer