Can it be applied to a damp substrate?

That is the distinguishing feature of hybrid (STP) products: they apply to damp surfaces and usually need no primer. The permitted substrate moisture is stated on the data sheet.

How many coats are needed?

Usually two, the second applied across the first once it has cured. Corners and details get extra thickness.

Can tiles be laid over it?

It depends on the product and is stated on the data sheet. Where it is permitted, let it cure fully and use a flexible adhesive.

Why does waterproofing leak at details?

Because a perfect field is undone by a neglected pipe penetration, corner or joint. Details take an extra coat and, where needed, tape reinforcement.

Brand

Sort

Waterproofing

Waterproofing products form a continuous, flexible membrane that keeps water out of the structure; what distinguishes hybrid (STP) products is that they go onto damp substrates, usually without a primer. The catalogue holds 3 products.

Where it goes and how it is applied

Foundation walls, roof terraces, balconies, wet rooms and detail points — pipe penetrations, internal corners — are the typical applications. Details are always the weak link: the field can be perfect and the water will still find a neglected pipe penetration.

Clear the surface of loose material and dust first and fill any cracks. The material usually goes on in two coats, the second crossing the first, with extra thickness at corners.

Frequently Asked Questions

Can it be applied to a damp substrate?
That is the distinguishing feature of hybrid (STP) products: they apply to damp surfaces and usually need no primer. The permitted substrate moisture is stated on the data sheet.
How many coats are needed?
Usually two, the second applied across the first once it has cured. Corners and details get extra thickness.
Can tiles be laid over it?
It depends on the product and is stated on the data sheet. Where it is permitted, let it cure fully and use a flexible adhesive.
Why does waterproofing leak at details?
Because a perfect field is undone by a neglected pipe penetration, corner or joint. Details take an extra coat and, where needed, tape reinforcement.