Primer KP

Base

• The substrate must be clean, dust-free, solid and immobile
• Loose layers, cement paste, and any other impurities must have been removed mechanically to ensure adhesion. 
• The subfloor structure must be more than +10°C.
• When using Fescon WS waterproofing compound, the substrate’s relative humidity must be < 90%, with Fescoseal A+B waterproofing compound < 95%

Mixing

• Concrete and cement-based levelling compounds: 1 part of primer and 3 parts of water
• Substrates that do not tolerate moisture, such as gypsum boards on floors and wood substrates: Not to be thinned.
• Mix the product before use by turning the package avoid shaking.

Application

• The primer is spread thinly using a brush. Fescon primer must not be applied so much that it creates puddles.
• The primer must be dry before the waterproofing compound or leveling compound is spread (1–4 hours, depending on the conditions).
• Highly absorbent substrates (such as in-situ cast concrete floors or renovated floors) are primed twice. The first layer with a ratio of 1:5 (1 part primer, 5 parts water), and the second layer with a ratio of 1:3.
• Wash tools and equipment with water immediately.

Other points to note

• When using building boards in wet spaces, check the priming instructions from the manufacturer.

Varastointi ja jätteen käsittely
Katso erillinen varastointi ja hävitysohje https://www.fescon.fi/materiaalipankki