Skip to content
🚛 Flat Rate Shipping $15.95+ GST Australia-wide! Excludes rural/remote areas and bulky and heavy items. Online only. Learn More
🚛 Flat Rate Shipping $15.95+ GST Australia-wide! Excludes rural/remote areas and bulky and heavy items. Online only. Learn More
🚛 Flat Rate Shipping $15.95+ GST Australia-wide! Excludes rural/remote areas and bulky and heavy items. Online only. Learn More
🚛 Flat Rate Shipping $15.95+ GST Australia-wide! Excludes rural/remote areas and bulky and heavy items. Online only. Learn More
🚛 Flat Rate Shipping $15.95+ GST Australia-wide! Excludes rural/remote areas and bulky and heavy items. Online only. Learn More
🚛 Flat Rate Shipping $15.95+ GST Australia-wide! Excludes rural/remote areas and bulky and heavy items. Online only. Learn More
🚛 Flat Rate Shipping $15.95+ GST Australia-wide! Excludes rural/remote areas and bulky and heavy items. Online only. Learn More
🚛 Flat Rate Shipping $15.95+ GST Australia-wide! Excludes rural/remote areas and bulky and heavy items. Online only. Learn More
🚛 Flat Rate Shipping $15.95+ GST Australia-wide! Excludes rural/remote areas and bulky and heavy items. Online only. Learn More
🚛 Flat Rate Shipping $15.95+ GST Australia-wide! Excludes rural/remote areas and bulky and heavy items. Online only. Learn More
🚛 Flat Rate Shipping $15.95+ GST Australia-wide! Excludes rural/remote areas and bulky and heavy items. Online only. Learn More
🚛 Flat Rate Shipping $15.95+ GST Australia-wide! Excludes rural/remote areas and bulky and heavy items. Online only. Learn More
11

Everflex Multi Prime Acrylic Primer

Everflex Multi-Prime is a high-performance, water-based acrylic primer engineered for superior adhesion on both porous and non-porous substrates. Designed to prepare surfaces for tile adhesives, waterproofing membranes, self-levelling compounds, and grouts, it delivers fast dry times, low VOC compliance, and reliable long-term performance on concrete, screeds, sheeting, timber, and more.
Vendor: Adheseal
SKU: PRIMEMULTI/20
Availability: In Stock
$233.56
$233.56
Prices do not include GST
Physical Properties
Base chemistry: Water-based acrylic
Voc content: Low
Colour options: Green (ral 6034)
Packaging options: 5l, 20l
Coverage rate: Approximately 5–10 m² per litre
Coats required: 1 (2 for highly porous surfaces)
Cure time: Approximately 1 hour @ 23°c
Application temperature: Minimum 10°c, maximum 35°c
Compatible substrates: Concrete, screeds, render, hebel, timber, ceramic tiles, burnished concrete, cement sheeting, precast panels
Application method: Brush, roller, spray
Shelf life: Refer to sds (typically 12 months if unopened)
Storage conditions: Store in a cool, dry place below 30°c
Primer status: Neat for non-porous, diluted for porous substrates
Dry film appearance: Translucent
Odour: Low
Compliance: Meets green star environmental criteria
Shipping & Delivery

$15.95 + GST for Australia-wide shipping, excluding DG, oversized, long-length, and bagged items over 15kg. Rural, remote areas and site deliveries are also ineligible. If your order includes any of these, we will contact you to arrange additional freight fees. Online purchases only.

Use Everflex Multi-Prime for: Enhancing adhesion on porous & non-porous surfaces, preparing substrates for membranes, adhesives, levellers & grouts, reducing delamination risks, meeting low VOC environmental standards.

Everflex Multi-Prime: A Technical Overview

Everflex Multi-Prime is a single-component, water-based acrylic primer designed to unify the prep process for both porous and non-porous substrates. Its fast-drying, solvent-free formula delivers exceptional surface readiness across concrete, screeds, Hebel, tiles, timber and more—making it an essential system component for tiling, waterproofing and levelling contractors. The product’s low VOC credentials and strong mould resistance support internal and external applications, especially in humid environments. Whether used neat or diluted, Multi-Prime maximises bond strength and minimises failure risk in system builds.

Core Features & Specifications

  • Solvent-free, low VOC acrylic formula meets Green Star criteria
  • Fast-drying with tack-free film typically forming within 60 minutes
  • Suitable for both porous (diluted) and non-porous (neat) substrates
  • Dilution ratios: 1:2 or 1:3 water for highly porous substrates
  • Applied by brush, roller or spray depending on site conditions
  • Coverage: 5–10m² per litre depending on porosity
  • Green colour for clear visual application control

The Everflex Multi-Prime Advantage

  • Reduces system failure by improving adhesion to tricky surfaces like burnished concrete and ceramic tiles
  • Saves time on site with fast dry times and no mixing required for non-porous surfaces
  • Improves hygiene outcomes with anti-mould properties in humid environments
  • Minimises OH&S concerns thanks to low odour, non-toxic formulation
  • Delivers consistent results across internal and external environments

Best Practices: Do's & Don'ts

Do

  • Dilute with clean water for porous substrates as per TDS ratios
  • Ensure substrates are clean, dry and free of contaminants
  • Use mechanical abrasion for glossy or non-absorbent surfaces
  • Allow primer to dry to a translucent film before proceeding

Don't

  • Don’t apply below 10°C or above 35°C ambient temperatures
  • Don’t use on damp or saturated surfaces
  • Don’t use on surfaces with hydrostatic pressure—use Everflex VBS instead
  • Don’t use solvents or acid to clean subfloors prior to application

Applications in Practice: Trade Scenarios

For Tilers (On-Site Applicator): Porous Concrete Slab Prep

The Engineering Challenge

Cured concrete slabs can vary in porosity, often leading to uneven adhesive absorption and poor tile bond. Inconsistent substrate prep risks call-backs and costly rework.

The System-Based Solution with Everflex Multi-Prime

Dilute 1 part Multi-Prime to 2 parts water. Apply with roller and allow to dry for at least 30 minutes before tiling. This ensures even porosity and optimal adhesive bond.

Best Practice Note

Use a water droplet test first—if water absorbs in under 2 minutes, the surface is porous and should be diluted accordingly.

For Waterproofers (Specifier): Overcoating Existing Membranes

The Engineering Challenge

Installing a compatible membrane system over an existing waterproofing layer requires secure adhesion to avoid bubbling or delamination.

The System-Based Solution with Everflex Multi-Prime

Apply neat Multi-Prime over the cured waterproofing membrane. Ensure the surface is clean and lightly abraded if glossy. Once translucent, overcoat with the compatible membrane.

Best Practice Note

Check the compatibility of the membrane chemistry and confirm adhesion with a test patch in critical areas.

Performance Benchmark: Everflex Multi-Prime vs. Standard Alternatives

Performance comparison between Everflex Multi-Prime and standard alternatives
Metric Everflex Multi-Prime Standard Alternative Advantage
VOC Level Low Green Star Compliant Medium–High Better for indoor use and sensitive environments
Substrate Compatibility Porous + Non-Porous Porous only Reduces need for multiple primers
Cure Time ~1 hour 2–4 hours Faster job progression

Frequently Asked Questions

What surfaces can Everflex Multi-Prime be applied to?

Everflex Multi-Prime is suitable for both porous substrates (like concrete, screeds, render, cement sheet, timber) and non-porous surfaces (such as ceramic tiles, waterproofing membranes, and burnished concrete). Ensure all surfaces are cured, dry, and clean for optimal adhesion performance.

How do I know whether a surface is porous or non-porous before applying Everflex Multi-Prime?

Use the water droplet test: place a small puddle of water (around the size of a $1 coin) on the surface. If it absorbs in under 2 minutes, it's porous. If the water remains on the surface, it's non-porous. This determines whether to apply Multi-Prime neat or diluted.

What is the correct dilution ratio of Everflex Multi-Prime for porous substrates?

For standard porous substrates, dilute 1 part Multi-Prime to 2 parts water. For highly porous or absorbent substrates, you may increase dilution to 1:3. Always apply with a roller or brush and allow 30 minutes to dry before overcoating.

Can Everflex Multi-Prime be used externally or in wet areas?

Yes, Everflex Multi-Prime is suitable for internal and external use, including wet areas. It helps prevent mould growth in humid environments and provides a secure base for waterproofing membranes. Avoid application in rainy conditions or on damp surfaces.

How long should I wait before applying waterproofing or tile adhesives over Everflex Multi-Prime?

Allow Everflex Multi-Prime to dry to a translucent, tack-free film, typically within 1 hour at 23°C. Atmospheric conditions like humidity and substrate porosity may affect dry times. Once cured, proceed with tiling, levelling, or waterproofing as specified.

Applications & Benefits

Product applications, benefits, and relevant trades
Application / Use Case Key Benefit Primary Trades
Priming porous concrete or screeds before tiling Improves adhesive bond and prevents over-absorption of tile adhesives Tilers, Builders
Surface prep for waterproofing membrane systems Ensures consistent membrane bond across varied substrates Waterproofers, Remedial Contractors
Primer before applying self-levelling floor compounds Prevents pinholing and slab suction for level finish Flooring Contractors
Recoating ceramic tile surfaces (abraded) Enables strong adhesion of membranes or levellers over tiles Tilers, Waterproofers
Bond enhancer for timber and cement sheeting systems Minimises movement-induced delamination in flexible underlayment builds Builders, Carpenters

Applying Everflex Multi-Prime: Enhanced Protocols & Best Practices

  1. 1. Surface Preparation

    Ensure substrates are dry, clean, structurally sound, and free from oils, dust, curing compounds, or any contaminants. Cure times vary—e.g. 28 days for concrete and 4 days for render/screed.

    Mechanical Preparation

    Use diamond grinding or sanding for difficult or smooth substrates. Avoid acid etching.

    Cleaning

    Vacuum dust thoroughly. Remove surface water or continual dampness before priming.

    Timing: Concrete: 28 days curing minimum. Screeds: 4 days minimum.
    Pro Tip: Avoid applying primer on surfaces with high moisture or visible condensation—test with moisture meters if unsure.
  2. 2. Application on Porous Substrates

    Dilute Everflex Multi-Prime 1:2 with clean water for general porous surfaces (e.g. cured concrete). Apply with roller or brush ensuring complete coverage.

    High Porosity Substrates

    Use a 1:3 dilution for very porous surfaces and apply a second coat if needed.

    Standard Porosity

    Dilute 1:2 with water and apply a single even coat.

    Timing: Allow 30 minutes for the first coat to cure before applying any subsequent coats or systems.
    Pro Tip: Surface should remain visibly wet for at least 2 minutes—this ensures correct substrate absorption.
  3. 3. Application on Non-Porous Substrates

    Use Everflex Multi-Prime undiluted (neat) for non-porous substrates like ceramic tiles, burnished concrete or waterproof membranes.

    Surface Etching (Optional)

    Light sanding or mechanical abrasion may enhance bond strength on high-gloss tiles or sealed surfaces.

    Direct Application

    Apply a single neat coat with brush or roller ensuring a uniform, opaque film across the surface.

    Timing: Allow to dry to translucent, tack-free film (approx. 1 hour @ 23°C).
    Pro Tip: Do not apply to high-gloss ceramic tiles unless abraded—bond may be compromised.

Limitations & Safety

Product Limitations

!
Not suitable for damp, wet, or saturated substrates. Use Everflex VBS for moisture-blocking applications.
!
Do not apply below 10°C or above 35°C. Environmental extremes may impair adhesion or drying.
!
Limited UV resistance. Product must be overcoated—do not leave exposed for extended periods.
!
Not designed for use where hydrostatic pressure or rising damp is present.
!
Do not apply onto glossy ceramic tiles without abrasion—insufficient bond strength may result.

Safety & Handling Requirements

🧤
Personal Protective Equipment

Wear standard work overalls, nitrile gloves, and safety glasses during handling. Avoid skin or eye contact. Wash hands after use and before eating, drinking, or smoking.

🌬️
Ventilation Requirements

Ensure adequate ventilation during indoor application. Though low VOC and low odour, avoid confined spaces without air movement.

🔥
Fire & Handling Precautions

Non-flammable and solvent-free. Avoid contamination with incompatible materials. Store sealed in a cool, dry location below 30°C.

🚨
Emergency First Aid
Eyes:
Flush immediately with clean running water for at least 15 minutes. Seek medical attention without delay.
Skin:
Remove contaminated clothing. Wash skin thoroughly with soap and water. Seek medical advice if irritation occurs.
Inhaled:
Move to fresh air immediately. Seek medical attention if symptoms persist.
Swallowed:
Rinse mouth and give a glass of water. Do not induce vomiting. Contact Poisons Information Centre (AU: 13 11 26).

Seek medical attention immediately in all cases of serious exposure.

Everflex Multi-Prime Application Guide

Concrete (Cured)

Allow concrete to cure for a minimum of 28 days. Remove laitance, dust, oil, and curing compounds. Mechanically abrade smooth surfaces if necessary. Ensure the surface is dry and free of surface water before priming.

Primer required for critical applications

Dilute Multi-Prime 1:2 with clean water. Apply evenly and allow 30 minutes to cure before proceeding.

Everflex Multi-Prime

Ceramic Tiles (Non-Glossy)

Ensure tiles are clean, dry, and free from oils, waxes, or sealers. For glossy tiles, abrade the surface lightly to enhance adhesion. Avoid use on high-gloss or glazed finishes without prep.

Primer required for non-porous bonding

Apply Multi-Prime neat (undiluted) with roller or brush. Let dry to translucent film before overcoating.

Everflex Multi-Prime

Sand & Cement Screeds (3:1 Ratio)

Allow screed to cure for at least 4 days. Remove dust and surface laitance. Ensure dry and well-bonded to underlying slab before priming.

Primer required for absorbent substrates

Dilute Multi-Prime 1:2 with water. Apply evenly and allow 30 minutes to dry.

Everflex Multi-Prime

Precast Concrete Panels

Remove all release agents, oils, or surface coatings. Rinse and lightly abrade if necessary. Substrate must be dry and free from contamination.

Apply diluted Multi-Prime (1:2) if porous, or neat if non-porous. Evaluate surface porosity with water test.

Everflex Multi-Prime

Structural Plywood / Timber (Type A)

Ensure sheets are securely fixed and clean. Remove dust, wax or oils. Protect edges from moisture ingress. Light sanding may be needed for smooth boards.

Use diluted Multi-Prime (1:2) for even absorption. Allow full drying before further layers.

Everflex Multi-Prime

Waterproof Membranes (Existing)

Ensure membrane is fully cured, clean, and dry. Lightly abrade smooth or glossy finishes. Remove any contaminants that could inhibit bonding.

Primer required for membrane overcoat systems

Apply Multi-Prime neat. Allow full cure before applying compatible membrane or tile adhesive.

Everflex Multi-Prime
Everflex Multi Prime Acrylic Primer
Vendor: Adheseal
Everflex Multi Prime Acrylic Primer
$233.56
Vendor: Adheseal
Everflex Multi Prime Acrylic Primer
$233.56
Size: 20L

Alternative Products

Need Help with Everflex Multi Prime Acrylic Primer?

Need more information about this product? Hit the button below and reach out to one of our experts now.

Recently Viewed Products

Thanks for subscribing!

This email has been registered!

Shop the look
Choose Options
Recently Viewed
Edit Option
Compare
Product SKUDescription Collection Availability Product Type Other Details
this is just a warning
Login
Shopping Cart
0 items