PM-21 Repair Primer

PM-21 Repair Primer

Penetrates deeply for lasting adhesion, and substrate protection ZoCoo PM-21 is a two-component, high-performance repair primer formulated with premium expoxy resin and a Cardanol-modified phenolic amine curing agent. It offers strong substrate bonding, fast drying, chemical and corrosion on resistance, and low VOC performance – ideal for strengthening and sealing concrete and other porous surfaces.

PM-21 Repair Primer

Why it stands out

PM-21 sets the new benchmark in the market as a high-performance two-component reinforcement penetrating primer designed for both interior and exterior applications. It delivers a unique combination of fast curing time, strong substrate adhesion, and deep surface penetration. It effectively seals porous surfaces while resisting peeling, efflorescence, and chemical damage, making it ideal as a first primer on a wide range of materials.

 

  • Strong adhesion penetrates deeply for lasting durability
  • Fast curing minimises downtime and speeds projects.
  • Resistant to chemicals, corrosion, and harsh weather.
  • Low VOC and odor ensure safe, eco-friendly use.
  • Seals moisture and prevents efflorescence damage.
  • Easy to apply with reliable, professional results.

 

Where can you use it

 

 First Primer Interior and Exterior

  • Floors (as an alkali-resistant primer)
  • Walls

Sealing Primer for Exterior

  • Walls
  • Concrete (ie. Bridges)

 

What Surfaces

  • Concrete
  • Cement
  • Mortar

 

  

Quantity

 

It covers 0.3 – 5kg/m² per coat, depending on surface conditions. Highly porous surfaces require a second coat.

POT LIFE: Approx. 30 minutes depends on temperature

CURING TIME: 1 hours (touch dry), 7 days (full cure)

 

Installation Process

 

  1. PM-21 must be thoroughly mixed A:B = 1:2 (weight ratio) using a slow speed mixer or hand taking care to avoid introducing too much air into the mix during mixing. Mixing should continue for about 2 minutes or until a homogeneous mix is achieved.
  2. Apply by roller or brush. Increase the coverage rate or apply a second coat if necessary.
  3. Before construction, ensure that the substrates surface must be clean, dry, no oil stain, n impurities. Cracks need to be sealed.

Product Details

Basic Information

  • SKU: PM-21
  • Category: Polyaspartic Polyurea Waterproofing
  • Brand: ZOCOO

Specifications

    0
  • Unit: Each
  • Status: Active

PM-21 Repair Primer | Know· Apply· Trust

Product Information

  • SKU: PM-21
  • Category: Polyaspartic Polyurea Waterproofing
  • Status: Active

Additional Details

  • Default Location: Rockys Warehouse
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Technical Details

Mix ratio (by weight):

A:B = 1:2

Surface dry time:

≤ 5 hours

Ultimate dry time:

≤ 24 hours

Recoat time:

2 hours

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Coverage and Packaging

Usage:

Walls: 0.3L/m²; Floors: 0.5L/m²

Coats req.

Walls: 1 - 2 coats: Floors: 2 coats

15L Coverage

Walls: 50m²; Floors: 30m²

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Storage and Shelf Life

Stored properly in undamaged and original sealed package in dry and cool temperature range +5°C to +35°C, protect from direct sunlight and frost.

Shelf life: 12 months from date of production.

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Tools & Cleaning

Brush, Roller or Electric Sprayer. Clean tools and equipment using Methyl Ethyl Ketone (Buttanone) immediately after use

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Application Conditions

Temp. Range: 7°C to 35°C. Humidity: Below 90%. Note: Ensure sufficient airflow.

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