For contractors and experienced DIYers who want a durable, waterproof and low-maintenance joint, an epoxy joint compound is a smart choice. Epoxy offers a strong and long-lasting alternative, especially in places where standard cement-based joints are inadequate, such as on patios or in areas subject to heavy (chemical) wear.
What is an epoxy grout?
An epoxy joint sealant is a two-component joint sealant consisting of a resin (component A) and a hardener (component B). After mixing, a strong, waterproof and chemically resistant joint is created. Unlike traditional cement joints, epoxy does not absorb moisture and does not crumble under heavy loads or extreme conditions.
Why choose epoxy joints?
Professionals are increasingly choosing epoxy joints because of their excellent technical properties:
- Waterproof: ideal for wet areas such as bathrooms and showers.
- Wear-resistant and chemically resistant: resistant to cleaning agents, acids and fats.
- Easy to maintain: thanks to the smooth and closed surface, dirt hardly sticks.
- Colourfast: no discolouration or contamination as with cement joints.
Is epoxy suitable as a jointing compound in swimming pools?
Yes, epoxy is an extremely strong choice as a jointing compound. The best choice depends on the specific application and conditions. Whether for a saltwater swimming pool or a swimming pool with chlorinated water, epoxy offers a major advantage thanks to its excellent watertightness and chemical resistance. Unlike other materials, epoxy retains its original appearance, even with regular cleaning with water or cleaning agents. Epoxy is resistant to limescale and does not bloom.
For successful application, tailored advice from an experienced consultant is essential. This is because epoxy-based grout requires specific processing techniques. Need help choosing? Contact our customer service team!
Why use epoxy joint filler?
Advantages of epoxy grout
- Waterproof, mould-resistant and low-maintenance
- Wear-resistant and resistant to chemicals
- Ideal for wet areas and outdoor use
- Colourfast and dirt-repellent
Disadvantages of epoxy joint filler
- More difficult to process than cement joints
- More expensive
- Fast processing requires experience
- Difficult to correct after curing
When should you choose epoxy grout?
Use an epoxy grout if the joint needs to be resistant to moisture, dirt and intensive use for a long time. For projects such as:
- Commercial kitchens
- Swimming pools
- Balconies and terraces
- Industrial floors
How long does it take for epoxy joints to dry?
The drying time of epoxy grout occurs in several phases. After mixing, you have approximately 45 minutes of processing time before the curing process begins. For light loads, the joint is sufficiently cured after 16 hours.
For the best long-term results, you should allow for a full curing time of 7 days.
Factors that influence the drying time are the ambient temperature (ideally between 10-25°C) and the layer thickness of the joint filler.
Tip from the Bostik experts: Ensure adequate ventilation during curing and avoid direct contact with water initially.
In conclusion
Whether you are working on a swimming pool or a project with high hygiene requirements, an epoxy joint offers a long-lasting, low-maintenance and professional finish. For experienced users, the material offers many advantages – provided it is applied correctly.
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