405 Tack Primer is an adhesion promoted primer developed for use in conjunction with various epoxy coatings and screed in our range.

The product exhibits outstanding adhesion to concrete and other surfaces. 405 Tack Primer is supplied as a two pack system, comprising pre-weighed amounts of base and curing agent components.

This product is for Professional Use Only.

Recommended Uses:

• As a primer for concrete prior to the application of certain epoxy coatings and screeds in our range
• As an adhesive for bonding new to old concrete e.g. resin bonding new floor toppings to old concrete
• As a protective treatment to exposed steel reinforcement during concrete repair

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• Features & Benefits
• Typical Properties
• Coverage
• Surface Preparation
• Application
• Cleaning
• Curing
• Limitations
• Storage & Shelf Life
• Health & Safety

Features & Benefits

• Water-based
• Two-pack
• Solvent free, low odour
• Excellent adhesion to concrete and steel
• Impervious to water
• Low viscosity, easily applied
• May be applied to cool, damp surfaces
• Pre-packaged units ready for use
• Very good chemical resistance

Typical Properties

Please consult our Technical Department on 0113 2455450 (option 2) or send a message to [email protected] for specific advice.

Coverage

• 3.3-6.7m²/kg depending on surface texture

Surface Preparation

Concrete:

• Concrete surfaces shall be a minimum of 21 days old and/or the residual moisture content shall be below 6%
• Ensure that the concrete is clean and free from dust, laitance, grease, oil, curing compound, and existing paint finishes etc
• Suitable mechanical treatment such as vacuum grit blasting or mechanical scabbling is recommended to ensure the removal of contaminants and to provide a mechanical ‘key’ for the 405 Tack Primer

Steel Reinforcement:

• Steel reinforcement shall be abraded, wire brushed etc. to remove all traces of rust
• Priming should immediately follow preparation to obviate the possibility of flash rusting

Mixing:

• 405 Tack Primer is supplied in pre-weighed containers ready for mixing
• Pour the contents of the curing agent container into the base container and thoroughly mix, preferably by mechanical means until a uniform consistency is achieved

Mixing Ratio:

• By Volume - 1.96 Base : 1 Curing Agent
• By Weight - 100 Base : 47.1 Curing Agent

Application

• Apply by brush or roller at a nominal rate of 0.15 to 0.30kg/m²
• Ensure that the surface is thoroughly wetted out
• Allow the primer to ‘tack up’ for a minimum of 10 minutes prior to the application of subsequent treatments
• Please refer to the relevant coating or screed product data sheet as appropriate

Note: In thin section the primer will remain ‘open’ for 90 minutes @ 20°C, within which time subsequent application should be carried out.

Should this period be exceeded then the surface must be re-primed prior to continuing.

Cleaning

• Clean equipment with 109 Tool Cleaner immediately after use

Curing

• Touch dry after 6 hours @ 20°C
• Hard dry after 12 hours @ 20°C

Limitations

• Do not apply to wet or uncured concrete surfaces
• Do not apply to temperatures below 3°C, or if there is a risk of frost during the initial curing period

Storage & Shelf Life

• Store in dry conditions, out of direct sunlight, at temperatures between 10°C and 25°C
• Do not expose to freezing conditions
• 405 Tack Primer has a minimum shelf life of 12 months when stored in original, unopened containers in accordance with manufacturer’s instructions

Health & Safety

• Avoid contact of the material with skin and eyes
• Wear gloves and goggles
• Wash off splashes immediately with soap and water
• Any eye contamination must be rapidly irrigated with copious amounts of clean water, and immediate medical attention sought
• Please refer to Material Safety Data Sheet for additional information
• 405 Tack Primer shall be applied strictly in accordance with the manufacturer’s instructions

For specific advice regarding any aspect of this product, please consult our Technical Department on 0113 2455450 (option 2) or send a message to [email protected]