PURPOSE:

To ensure the adhesion of cushion based compounds such as Flexi-base and Cushion Base to concrete substrates.
To seal and provide a waterproofing barrier on concrete standards.

DESCRIPTION:

Hydro-Prime is a two component, emulsion based Acrylic/Epoxy blend primer, supplied as Part A and Part B.
The combination of these two components chemically cross-link to form a flexible, tough film that primes and seals concrete.
The cured film provides an excellent waterproofing barrier capable of withstanding the transmission of water from below and within the concrete base.
Principally Hydro-Prime is used to promote adhesion between the concrete and cushion based emulsion blends such as Flexi-Base and Cushion Base.

SURFACE PREPARATION:

For full details on this subject refer to subject matter Surface Preparation.

New or old concrete surfaces must be prepared either by a combination of dilute acid and high pressure water blasting or extreme situations by mechanical methods such as shot or sand blasting. Acid etching being the most commonly used method. Note: When using acid to etch the surface, a solution of muriatic or phosphoric acid with potable water to achieve a concentration of 10 to 15% acid is required. If the concentration of acid is 35%, dilute 1 part acid to 3 parts water. Always add acid to water. A 16 litre mix requires 4 litres acid to 12 litres water.

APPLICATION:

MIX: Empty the entire contents of Part B (4 Ltrs) into Part A (16 Ltrs) component pail. Blend the components using a low speed mixer at a speed between 400-600 r.p.m. for a minimum period of 2 minutes. Do not incorporate air when mixing. decant the 20 Litre mix into two clean 20 Ltr buckets, half fill each bucket to 10 Ltrs and fill with equal part of clean water (potable). Blend the mix using a slow speed mixer at a speed between 400-600 r.p.m. for a minimum of 2 minutes.

APPLICATION: After mixing, pour immediately onto the clean, dry substrate and spread evenly with a wide framed, medium to long nap paint roller or apply by low pressure spray unit. Avoid heavy concentrations. The intent is to obtain maximum penetration. Heavy builds will only glaze the surface and may prevent rather than promote the adhesion of the cushion layer. Application rates will vary depending upon porosity of the substrate. An approximate coverage rate is 13m2 per Litre.

DRYING TIME: The primer will be dry enough to over coat after 1 hour, depending on porosity of the substrate and temperatures. Apply Cushion Base as soon as the sealer is dry.

COVERAGE: At an approximate coverage of 13m2 per Litre the 40 Litre mix will cover an area of 520m2.

LIMITATIONS: Do not apply when temperatures are below 100C or above 350C or when rain is imminent. Do not allow the applied sealer to remain exposed tot he elements for more than 24 hours. Apply Cushion Base or Flexi-Base as soon as the primer is dry enough to walk on.

The information presented in this data sheet does not imply any warranty. Further, the maker reserves the right to alter the product, the specification and/or the application techniques as described herein without prior notice, in line with his policy of technological advancement and product improvement. Whilst any information and/or specification contained herein is to the best of our knowledge, true and accurate, no warranty is given or implied in connection with any recommendations or suggestions made by us or our Representatives, Agents or Distributors as conditions of use and any labour involved are beyond our control.