 
         
        Nutech Master Sealer is a water-based, adhesion promoting acrylic primer and sealer designed for very porous roof tiles and masonry surfaces. Surfaces primed with Master Sealer and top coated with a Nutech Roof coatings perform exceptionally well in all weather conditions.
One of the key strengths of Master Sealer lies in its ability to tackle highly porous surfaces. Whether working with exposed roof tiles or masonry surfaces, this primer is designed to penetrate and seal effectively, optimising adhesion. It is suitable for both residential and commercial use, particularly in areas prone to extreme weather conditions.
Features:
- Excellent build
- Excellent surface adhesion
- Improves hardness and flexibility
- Weatherproofing performance
- fast drying
Specifications
| Property | Value | 
|---|---|
| Appearance | Opaque white viscous liquid | 
| pH | 8.5 – 9.0 | 
| Solubility | Water | 
| Film Forming Temperature | 12°C | 
| Dry Film Thickness | 95 microns | 
| Coats Required | 1 | 
| VOC Levels | 35 g/L | 
| Ambient Application Temperature | 12°C – 30°C | 
| Coverage Rate | 4 m²/L | 
Application Conditions:
- CONSIDERATION must be given to climatic conditions such as rain, wind and relative humidity
- ONLY apply between 10°C and 30°C ambient air temperatures
- DO NOT overcoat until Master Sealer coat is completely dry
- AVOID painting in extreme temperatures
- DO NOT apply to extremely hot surfaces
- DO NOT apply in very cold temperatures
- Failure to observe these provisions may affect coating adhesion
Warnings:
- Master Sealer is NOT recommended for terracotta roof tiles or oxidised, powdery tile surfaces. Refer to Terracotta Primer, NuPrime and SupaPrime respectively for these surfaces
- Do not apply Master Sealer on uncured mortar pointing
- Do not apply Master Sealer on tiles with a powdery loose oxidised surface
Recommended Substrates:
- Stable roof tile surfaces
- Concrete surfaces
- Masonry surfaces
Colour Accuracy Disclaimer: We have taken care to display the most accurate visuals of our products. However, we are not responsible for the colour accuracy of the device you are viewing our swatches on. These variations arise due to different computer monitors and devices (make, model and technology, as well as resolution, contrast and brightness control settings) in much the same way a scan will differ from an original image and a colour photocopy. Furthermore, coatings can exhibit variation in perceived colour depending on gloss level and application method. If you require a very specific colour match, please make your selection via actual swatches and colour boards available at our showroom.
Product Disclaimer: Ensure you read all product, technical and safety data sheets prior to application as liability falls on the applicator. All products must be applied in accordance with manufacturer’s recommended method.
