Sikafloor®-80 EpoCem® Primer

WATER BASED EPOXY RESIN PRIMER

Sikafloor®-80 EpoCem® Primer is a 2- part water based epoxy resin primer.

  • Easy and fast application
  • Especially suitable for highly absorbent substrates
  • Water based and odourless
  • Very good bond strength over a wide temperature range
Product Data Sheet Show all documents

Overview

Usage

A primer and adhesion promoter on the following substrates:
  • New and old concrete
  • Cementitious screeds
  • Sikafloor® EpoCem® levelling layers
As a primer for:
  • Sikafloor®-81 EpoCem® and Sikafloor®-82 EpoCem®
 

Advantages

  • Easy and fast application
  • Especially suitable for highly absorbent substrates
  • Water based and odourless
  • Very good bond strength over a wide temperature range

Packaging

Part A

1.05 kgx2

Part B

2.63 kgx2

Part A + B

7.36 kg ready to mix units

Colour

Part A

White liquid

Part B

Translucent yellowish liquid

Mixed colour

Whitesh

Product Details

Chemical Base

Water based epoxy

Shelf Life

12 months from date of production

Storage Conditions

The product must be stored in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +5 °C and +30 °C. Always refer to packaging.

Density

Part A

~1,10 kg/l (at +27 °C)

Part B

~1,04 kg/l (at +27 °C)

Mixed resin

~1,05 kg/l (at +27 °C)

Tensile Adhesion Strength

> 1,5 N/mm²

(ISO 4624)

Application

Mixing Ratio

Part A : Part B = 1 : 2.5 (by weight)

Ambient Air Temperature

+10 °C min. / +35 °C max.

Layer Thickness

Dry film thickness ~25 μm per coat

Relative Air Humidity

85 % max.

Dew Point

Beware of condensation.
The substrate and uncured floor must be at least 3 °C above dew point to reduce the risk of condensation or blooming on the surface of the applied product.

Substrate Temperature

+10 °C min. / +35 °C max.

Substrate Moisture Content

Can be applied on damp concrete when overcoating with the Sikafloor® EpoCem® range.

Pot Life

Temperature

Time

+10 °C

~120 minutes

+20 °C~90 minutes
+30 °C~45 minutes

Curing Time

Substrate temperature

Foot traffic

+10 °C

~12 hours

+20 °C

~6 hours

+30 °C

~4 hours

No specific additional curing measures are required.
All times are approximate and will be affected by changing ambient and substrate conditions.

Waiting Time / Overcoating

Before applying Sikafloor®-81 EpoCem® / Sikafloor®-82 EpoCem® onto Sikafloor®-80 EpoCem® Primer allow:

Substrate temperature

Minimum

Maximum

+10 °C

12 hours

24 hours

+20 °C

6 hours

12 hours

+30 °C

4 hours

6 hours

Consumption

1–2 coats × 0.20–0.4 kg/m² (dependent on substrate porosity).

This figure is theoretical and does not include for any additional material required due to surface porosity, surface profile, variation in level or wastage, etc.

MIXING

Prior to mixing, thoroughly stir part A (resin) mechanically. When all of part B (hardener) has been added to part A, mix continuously for 3 minutes until a uniform mix has been achieved.

To ensure thorough mixing, after mixing for 3 minutes, pour mixed material into another container carefully scraping residue material from the sides with a spatula then mix again to ensure complete and thorough mixing.

Excessive mixing must be avoided to minimise air entrainment.

Mixing Tools

Sikafloor®-80 EpoCem® Primer must be thoroughly mixed using low speed electrical equipment (300–400 rpm).

APPLICATION

Apply Sikafloor®-80 EpoCem® Primer by suitable brush, roller or squeegee and then back roller in two directions at right angles to each other.

Caution: The end of the product’s potlife is not visibly noticeable. Use within the specified times. Discard material not used within these times.

 

CLEANING OF TOOLS

Clean all tools and application equipment with water immediately after use. Hardened or cured material can only be removed mechanically.

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