ZEMCOAT Water Resistant is a specially formulated skimcoat for super fine plastering applications. This specific Zemcoat variant not only smoothens minor unevenness (0.5-2mm) but also prevents the penetration of moisture, hence paint blistering is avoided. Ideal for application areas that need additional protection against rain or moisture, such as facade, bathroom, kitchen, firewall, etc.


  • Water resistant to protect against moisture absorption & mold growth
  • Prevents paint delamination & blistering due to water resistancy
  • Superior Bonding
  • Ultra thin application to perfectly smoothen minor unevenness of concrete & plastered surfaces
  • Prevents hairline cracks & pinholes
  • High initial adhesiveness and non-sag properties make it ideal for overhead application
  • Economical due to reduced construction & labor costs
  • Compatible with masonry paint, concrete sealer, etc.
  • Direct application on indoor & outdoor concrete surfaces
  • Eco-friendly (low Volatile organic compound levels)

Surface Preparation

Concrete surface must be cured, structurally stable, clean & free of paint and contaminants such as dirt, dust, loose material, oils, chemicals, etc.

Caution:For outdoors & during hot weather conditions (noon time or summer), wet substrate well to ensure proper bonding.

Substrate Surface Preparation
New concreteConcrete must have cured 7-15 days
Painted concrete Abrade paint (w/ steel brush & paint remover)
Smooth concreteUse Zembond (Mortar & Plaster Aid) as scratch coat
Repair work
Scrape off loose paint and paint blisters

How to use Zemcoat Skimcoat – Water Resistant

1. Mixing

MIXING RATIO (approx.)
WaterZemcoat Water Resistant
0.35 L1 kg
7 L20 kg

Pour water in a plastic pail and add Zemcoat Water Resistant. Mix 2 – 3 minutes to attain a smooth and lump-free consistency. Let mixture rest for 15 minutes. Mix again briefly before use. (NEVER mix old batch with new batch.)

Tagalog: Maglagay ng tubig sa timba at ilagay ang Zemcoat Water Resistant. Haluin sa loob ng 2 – 3 minuto upang masigurado ang magandang resulta ng halo. Hayaan ng 15 minuto at haluin muli bago gamitin. (Huwag paghaluin ang luma at bagong gawang halo.)

Pot life: 2hours

2. Application

While the surface is still damp, apply Zemcoat Water Resistant to desired application thickness (0.5-2mm) using a steel trowel. Zemcoat Water Resistant has set when the finish looks matte. To further smoothen minor surface unevenness before painting, sprinkle a small amount of water before the surface is about to set, then smoothen to desired finish using a
rubber float. (Setting Time: 30 minutes)  (Dampen concrete surface before Zemcoat application.)

Tagalog: Habang bahagyang basa ang kongkreto, ipahid ang Zemcoat Water Resistant ayon sa kapal na 2 – 5mm gamit ang rodelang bakal.  (Basain ang kongkreto bago magpahid ng Zemcoat.)

  • When using Zemcoat variants with the same color, apply Water Resistant just before Original is about to set.
  • When using Zemcoat variants with different colors, apply Water Resistant only after Original has already set.

3. Finishing

Zemcoat Water Resistant must receive further finishing as protection (e.g. paint, wall paper, concrete sealer, etc.).
Let it cure for 3 – 5 days prior to further finishing. (Cure 3 – 5 days)

Tagalog: Ang Zemcoat Original ay nangangailangan ng finishing (pintura, wall paper, render, concrete sealer atbp.) nang hindi bababa sa 3 – 5 araw bago lagyan ng finishing. (Cure 3 – 5 days)


COVERAGE (approx.)
Zemcoat Water ResistantApplication ThicknessArea
20 kg0.5 - 1 mm20 - 40 m²
2 mm8 - 10 m²
Note: Calculation based on 1 - 1.2kg/m2/mm application thickness. Coverage may vary depending on substrate condition, application thickness and workmanship.

Color: White


  • 20kg multilayer paper bag Zemcoat Water Resistant

Use clean water to remove excess Zemcoat on tools before it hardens. Non-toxic. Do not swallow or ingest. As with any cementitious material, avoid eye exposure and prolonged skin contact. In case of irritation, rinse with sufficient water. If symptoms persist, consult your doctor. Store in a cool dry place. In its original packaging, Zemcoat Water Resistant will remain usable for a period of one year from date of manufacture.

Due to the variety of applications, the differing methods of working, the various properties of bases, etc., we cannot assume responsibility or liability with regard to the application of our products. Our guarantee and liability is restricted to the quality of our products at the time of acceptance of the customer of such products. In no case shall our liability extend beyond replacement of defective products, if any, found at the time of acceptance. For all deliveries and services, our General Sales Condition, including warranties stipulated for each case are valid.