Ardex R 3 E Moisture Tolerant Primer


From: £142.56 inc. VAT
£118.80 ex. VAT

Checkout
  • Suitable For: damp concrete and cementitious surfaces
  • Area of use: INT
  • Application Method: brush
  • Time to full cure: 24 hours
  • Volume: 6kg 25kg
  • Container Type: tin
  • Colour: clear
  • Brand: Ardex
  • Manufactuer: Ardex
  • Box Size: 1
Data Sheets

Download Safety Sheet

Download Tech Data

 

ARDEX R 3 E is a high-performance, solvent-free, two-component epoxy primer and bonding agent designed for use on a variety of sound substrates. This epoxy resin is suitable for application on concrete, cementitious surfaces, calcium sulphate-based screeds, and smoothing compounds. ARDEX R 3 E creates an effective primer and bonding layer on both dry and dense surfaces, making it ideal for use in both internal and external environments. It serves as a crucial preparatory step before applying ARDEX’s range of cement-based tiling and flooring products. To ensure optimal adhesion, ARDEX R 3 E must be sand-blinded with dry ARDEX Fine Aggregate to create a mechanical key when used as a primer for the ARDEX K 80/ARDEX SD-T B Industrial Floor System or other ARDEX cement-based products and smoothing compounds. In cases of very porous substrates, additional coats of ARDEX R 3 E may be necessary to fully saturate the surface and achieve the desired bonding performance. For substrates with a relative humidity (RH) exceeding 75% or where a structural damp proof membrane is not in place, it is recommended to apply ARDEX DPM 1 C before ARDEX R 3 E.

Key Points:

  1. Versatile Application: ARDEX R 3 E is suitable for use on concrete, cementitious surfaces, calcium sulphate-based screeds, and smoothing compounds, both internally and externally.
  2. Effective Primer and Bonding Agent: It forms a strong primer and bonding layer on dry and dense surfaces, enhancing adhesion for subsequent ARDEX cement-based tiling and flooring products.
  3. Mechanical Key Creation: When used as a primer, ARDEX R 3 E must be sand-blinded with dry ARDEX Fine Aggregate to provide a mechanical key, ensuring a secure bond with ARDEX K 80/ARDEX SD-T B Industrial Floor System and other ARDEX products.
  4. Humidity and Porosity Considerations: For surfaces with relative humidity above 75% or where a structural damp proof membrane is not present, ARDEX DPM 1 C should be applied prior to ARDEX R 3 E. Additional coats of ARDEX R 3 E may be needed for very porous substrates to achieve full saturation and effective bonding.

 

Coverage: Approximately 24 square meters per 6kg unit.

 

Storage and Shelf Life: Store in a dry environment. ARDEX R 3 E Solvent-Free Epoxy Primer has a shelf life of at least 12 months when kept in its original, unopened containers.

 

 

 

For more in our range of primers, please click here. For our full range of Ardex products, click here.

Alternatively, you can visit the Ardex website by clicking here.

 

 

ARDEX R 3 E Moisture Tolerant Epoxy Primer is a two component solvent free epoxy resin for use on concrete and cementitious surfaces that have damp surfaces (e.g. from water spillages or rain) prior to installing polyurethane screeds and self-smoothing epoxy floor coatings.

Surface Preparation

Ensure that the concrete or screed substrate is hard, sound, and free from dust, paint, lime coatings, plaster, curing agents, laitance, adhesive residues, and other materials that could impair adhesion. Prior to mechanical preparation, use ARDEX DGR Degreaser to remove polish, wax, grease, oil, and other contaminating substances. Prepare all substrates with appropriate mechanized surface preparation equipment before applying ARDEX products. After mechanical preparation, thoroughly remove all dust and fines using a combination of brushing and industrial vacuum extraction. The substrate must be prepared to a depth that exposes the aggregate and provides a solid surface ready for treatment.

Note: Movement joints or cracks in the concrete that are subject to differential movement, such as expansion joints, should be carried through to the finished surface and properly sealed.

Mixing

Before mixing, thoroughly stir each component of the ARDEX R 3 E Solvent-Free Epoxy Primer. Pour the entire contents of the hardener container (Component B) into the resin container (Component A) and mix thoroughly for at least 3 minutes using a heavy-duty slow-speed drill and spiral paddle. Reintroduce some of the mixed material back into the hardener container to activate any residual product, then pour it back into the resin container and mix for an additional 30 seconds. This method ensures consistent product quality and allows for easier disposal of leftover material. The mixed primer has a working time of up to 20 minutes at 20°C; any remaining material should be discarded safely after this period.

Note: ARDEX R 3 E will generate heat and reduce working time if left in the mixing container or stored in bulk. Always wear suitable eye/face protection and gloves during mixing.

Application

Apply the mixed material promptly to the floor using a brush or a short/medium pile roller, as the self-heating of the mixture will decrease working time. One or more coats may be necessary to achieve a uniform coating and address variations in surface porosity. Ensure all movement joints in the subfloor are carried through the topping and properly sealed. Construction joints and non-moving cracks can be overlaid, but any movement in the floor will reflect through the system. Isolation joints should be incorporated in areas with anticipated high thermal movement, such as around ovens and freezers.

When using ARDEX Fine Aggregate as a sand blind, apply it while the ARDEX R 3 E is still wet. Fully cover the wet surface with dry ARDEX Fine Aggregate. Remove any excess aggregate by brushing or vacuuming after the ARDEX R 3 E has set, which typically leaves a sandpaper-like finish.

 

Reviews

There are no reviews yet.

Be the first to review “Ardex R 3 E Moisture Tolerant Primer”

Elementlength
up to
1,5 m 		up to
2,5 m 		up to
3,5 m 		up to
4,5 m 		up to
2,5 m 		up to
3,5 m 		up to
4,5 m
Type of window frame material Minimum witdth of joints
for a butled mounting b in mm 		Minimum witdth of joints
for a inner mounting b in mm
Hard PVC (white) 10 15 20 25 10 10 15
Hard PVC and PMMA (dark)
(colour extruded) 		15 20 25 30 10 15 20
Hard PUR integral foam 10 10 15 20 10 10 15
Wood-aluminium-window 10 10 15 20 10 10 15
Aluminium-plastic sandwich
frame (bright) 		10 10 15 20 10 10 15
Aluminium-plastic sandwich
frame (dark) 		10 15 20 25 10 10 15
Wooden window frame 10 10 10 10 10 10 10

Related Products

ARBO Arbosil HM Internal Sealant 310ml


From: £3.11 inc. VAT
£2.59 ex. VAT

ARBO Arbosil HM Internal Sealant 310ml


From: £3.11 inc. VAT
£2.59 ex. VAT
Select options This product has multiple variants. The options may be chosen on the product page

MAPESIL AC – Internal Silicone Sealants


From: £8.03 inc. VAT
£6.69 ex. VAT

MAPESIL AC – Internal Silicone Sealants


From: £8.03 inc. VAT
£6.69 ex. VAT
Select options This product has multiple variants. The options may be chosen on the product page
CT1

CT1 Sealant & Adhesive


From: £10.07 inc. VAT
£8.39 ex. VAT
CT1

CT1 Sealant & Adhesive


From: £10.07 inc. VAT
£8.39 ex. VAT
Select options This product has multiple variants. The options may be chosen on the product page

Everbuild 825 – External Sealant 380ml


From: £3.11 inc. VAT
£2.59 ex. VAT

Everbuild 825 – External Sealant 380ml


From: £3.11 inc. VAT
£2.59 ex. VAT
Select options This product has multiple variants. The options may be chosen on the product page

ARBO Arbosil LM External Sealant 380ml


From: £3.11 inc. VAT
£2.59 ex. VAT

ARBO Arbosil LM External Sealant 380ml


From: £3.11 inc. VAT
£2.59 ex. VAT
Select options This product has multiple variants. The options may be chosen on the product page

Everbuild Anti-Pick 109 295ml


From: £6.59 inc. VAT
£5.49 ex. VAT

Everbuild Anti-Pick 109 295ml


From: £6.59 inc. VAT
£5.49 ex. VAT
Select options This product has multiple variants. The options may be chosen on the product page

Bond-It WP100 Neutral Cure Oxime Silicone


From: £2.86 inc. VAT
£2.38 ex. VAT

Bond-It WP100 Neutral Cure Oxime Silicone


From: £2.86 inc. VAT
£2.38 ex. VAT
Select options This product has multiple variants. The options may be chosen on the product page

ARBO Arbosil LM External Sealant 310ml


From: £2.69 inc. VAT
£2.24 ex. VAT

ARBO Arbosil LM External Sealant 310ml


From: £2.69 inc. VAT
£2.24 ex. VAT
Select options This product has multiple variants. The options may be chosen on the product page

  • Bond-It De-Bond Mate Silicone Sealant Remover


    £3.19 inc. VAT
    £2.66 ex. VAT

    Bond-It De-Bond Mate Silicone Sealant Remover


    £3.19 inc. VAT
    £2.66 ex. VAT
      Bond-It De-Bond Mate is A non-drip gel formula for the complete removal of cured silicone sealant, particularly when silicone has been accidentally smeared over glass, ceramics or countertops. Removes all types of silicone sealant, leaving surfaces ready for re-sealing.     For all other Bond-it products on our website, please click here. For any further information, you may need on Bond-it, please visit their website here.
    Add to basket

  • Bond-it Flash Mate Lead Sealant 310ml


    £2.94 inc. VAT
    £2.45 ex. VAT

    Bond-it Flash Mate Lead Sealant 310ml


    £2.94 inc. VAT
    £2.45 ex. VAT
      Bond-it Flash Mate Lead Silicone is a low modulus neutral cure fast-skinning, roof sealant  It is a high-performance neutral cure silicone sealant, specifically designed for use with roofing products both modern and traditional.     For all other Bond-it products on our website, please click here. For an alternative silicone for lead, click here. For any further information you may need on Bond-it, please visit their website here.
    Add to basket

  • Everbuild 565 Clean Room Silicone 295ml


    £9.06 inc. VAT
    £7.55 ex. VAT

    Everbuild 565 Clean Room Silicone 295ml


    £9.06 inc. VAT
    £7.55 ex. VAT
      Everbuild 565 Clean Room Silicone is a neutral cure, low modulus, odourless sealant that adheres to a wide range of surfaces. Advantages - Mould Resistant for up to 10 years. - Bacterial resistance. - Excellent tooling and slow skinning properties. - Excellent adhesion properties to most surfaces. - Non-slump formula. - Excellent weathering properties.     For application guns click here. For application tools click here. For all other Everbuild products on our website, please click here. For any further information on Everbuild products, please visit
    Add to basket

  • Everbuild Aqua Mate 295ml


    £6.78 inc. VAT
    £5.65 ex. VAT

    Everbuild Aqua Mate 295ml


    £6.78 inc. VAT
    £5.65 ex. VAT
      Everbuild Aqua Mate Sealant is a high modulus, reactive curing silicone sealant specially designed for aquariums. It remains permanently flexible & forms a watertight seal. Advantages - Everbuild Aqua Mate is free from fungicide and solvent - will not harm fish. - Fast cure - gives quick early strengths. - Extremely low dirt pick up. - Will withstand continuous water immersion.   For application guns for this product, please click here. For all other Everbuild products on our site, please view here. For any further information on any Everbuild products, ple
    Add to basket