Table of Contents
Introduction
Mastic sealant is a type of sealant or adhesive used to fill joints or as a bond between various materials and gaps. It is a resilient and flexible material used to permanently connect two dissimilar surfaces or to protect certain surfaces.
This article describes all the important things related to the mastic sealant.
Properties of Mastic Sealants
- Mastic sealants are general purpose sealants used on a variety of materials such as aluminum, glass, marble, wood, plastics, ceramics and steel.
- These sealants can be used to seal or join two dissimilar materials. For example, wall tiles can be joined to porcelain stoneware floor tiles (or other tile material) to minimize leakage.
- Mastic sealants are commonly used on metal units due to their corrosion resistance.
- These sealants are temperature, water, and UV resistant, so you can use them for outdoor projects. Mastic sealants can be applied to surfaces immediately without priming.
- There are several types of mastic sealants such as Waterproof putty, anti-mildew putty, window and door putty, etc. There are also general-purpose putties from various manufacturers that are used for some tasks.
Uses of Mastic Sealant
- For bonding ceiling, wall or floor tiles
- window and door joints
- For sealing joints around bathrooms and sanitary appliances.
- For filling cracks in stone and concrete
- For filling moving joints in wall and floor tiles
- For bonding plywood panels
- Seal seams in HVAC systems where HVAC tape cannot pass.
Advantages of Mastic Sealants
- Applying mastic to the surface requires less preparation.
- Used for both interior and exterior projects.
- They are flexible and elastic. Therefore, it is more durable.
- Water repellent and UV resistant.
- Mastic sealants can easily bond two materials together. Excellent corrosion resistance.
- Mastic sealants or fillers cannot accommodate large movements. Its viscosity makes it ideal for thicker areas.
Closing Thought
Mastic sealant has been used as an adhesive in many construction projects over the years. Mastic sealant is used for fixing floor tiles, cladding panels or filling gaps. Its use as a sealant has been limited due to its poor weatherability and poor resistance to water intrusion.
In recent years, advances in sealing technology have made silicone mastic sealants the most widely used product for sealing just about anything inside and out, and they last for years.