PM-21 Repair Primer
ZOCOO PM-21 is a two-component, high-performance repair primer formulated with premium epoxy resin and a Cardanolmodified phenolic amine curing agent. It offers strong substrate bonding, fast drying, chemical and corrosion resistance, and low VOC performance - ideal for strengthening and sealing concrete and other porous surfaces.

Why it stands out
Why it stands out
PM-21 sets the new benchmark in the market as a high-performance twocomponent 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
Product Details
Basic Information
- SKU: PM-21
- Category: Polyaspartic Polyurea Waterproofing
- Brand: ZOCOO
Specifications
- 0
- Unit: m2
- Status: Active
Quantity
It covers 0.3-0.5kg/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 hour (Touch dry), 7 days (Full cure)
Installation Process
- 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.
- Apply by roller or brush. Increase the coverage rate or apply a second coat if necessary.
- Before construction, ensure that the substrates surface must be clean, dry, no oil stain, no impurities. Cracks need to be sealed.
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
- Cement
- Concrete
- Metals
- Other substrates (excluding plastic)
PM-21 Repair Primer | Know· Apply· Trust
Product Information
- SKU: PM-21
- Category: Polyaspartic Polyurea Waterproofing
- Status: Active
Additional Details
- Default Location: Main Warehouse
Technical Details
Mix ratio (by weight):
A:B = 1:2
Surface dry time:
�P5 hours
Ultimate dry time:
�P24 hours
Recoat time:
2 hours
Coverage and Packaging
Usage:
0.3 L/m2 Walls , 0.5 L/m2 Floors
Coats req.
1-2 coats Walls , 2 coats Floors
15L Coverage
50 m2 Walls, 30 m2 Floors
Storage and Shelf Life
Stored properly in undamaged and original sealed package in dry and cool temperature range +5o C to +35o C, protect from direct sunlight and frost
Shelf life: 12 months from date of production.
Tools & Cleaning
Brush ,Roller, Electric Sprayer Cleaned with a damp cloth with a minimum of Xylene, Acetone, or Methylated Spirits.