Thin-Coat Plastering & Masonry Mortar

This product is refined from high molecular polymers, organic additives, high-grade cement, and auxiliary agents. It features high weather resistance, excellent crack resistance, and low shrinkage. Available in four strength grades: M5, M7.5, M10, and M15.

Thin-layer masonry mortar is designed for building walls, while thin-layer plastering mortar offers superior workability and strong adhesion, providing excellent water resistance and structural strength in wet environments.

Information

  • Product Name:  (Thin-layer Masonry Mortar / Thin-layer Plastering Mortar)

  • Net Weight: 40KG

Features

  • Thin-layer Masonry Mortar：Easy to use (just add water); High water retention and strong bonding; High weather resistance, crack resistance, and low shrinkage.

  • Thin-layer Plastering Mortar：High bonding strength; Thin-layer application for a smooth, aesthetic finish; Suitable for dry environments and large exposed areas.

Category:

Thin-layer Masonry Mortar：Suitable for fly ash aerated blocks, autoclaved aerated concrete (AAC) blocks, lightweight bricks, and high-absorption wall materials.

Thin-layer Plastering Mortar：Suitable for AAC blocks, lightweight bricks, high-absorption wall materials, and lightweight partition walls.

Thin-layer Masonry Mortar

  • Ensure the masonry block surface is firm, level, and free of cracks, release agents, or other substances that hinder bonding.
  • Remove all dust, oil, and grime. Repair any chipped or damaged blocks first; if the surface is prone to dusting, treat it beforehand.
  • Use a mixer: add clean water to a clean container, then add the product while mixing until a uniform, lump-free paste is formed. Let it stand for 5-10 minutes, then re-mix for 1-2 minutes before use. No additional water is needed during re-mixing. Clear away any dust or grease.

Thin-layer Plastering Mortar

  • Clear debris from the base surface; the surface should be clean, firm, and free of dust and grease.
  • Roughen the shear wall surface. One day before application, pressure-wash the interface to remove loose dust before proceeding with thin-layer plastering.
  • During application, the single-layer thickness should not exceed 10mm. When applying across different materials, reinforce the joints with alkali-resistant fiberglass mesh. Finish the surface promptly after the initial water absorption.
  • 24 hours after completion, begin water curing (recommended twice daily, morning and evening, for 3 days).

Complies with GB/T 25181-2019 “Ready-mixed Mortar” standard.

Test ItemsStandard Requirements
Compressive Strength – MPaM5, M7.5, M10, M15
Setting Time – h3 – 12
Water Retention – %≥ 99
14d Tensile Bond Strength – MPa)≥ 0.3

NOTE

  • Remove crusts before use;
  • Do not reuse hardened mortar.
  • Application temp: 5°C ~ 40°C. Safety: Alkaline (wear gloves).
  • Storage: Keep dry, avoid rain/sun, store above 0°C.
  • Shelf life: 12 months.

It offers two functions in one product line: Thin-layer Masonry Mortar for building walls with fly ash aerated blocks, AAC blocks and lightweight bricks, and Thin-layer Plastering Mortar for smooth, aesthetic wall finishes in dry environments.

Four grades — M5, M7.5, M10, and M15 — packaged in 40KG bags.

It complies with the GB/T 25181-2019 “Ready-mixed Mortar” standard.

The masonry block surface must be firm, level, and free of cracks, release agents, dust, oil, or grime. Repair any chipped or damaged blocks first, and treat surfaces that are prone to dusting beforehand.

Add clean water to a clean container, then add the product while mixing until a lump-free paste forms. Let it stand for 5–10 minutes, then re-mix for 1–2 minutes before use — no additional water is needed during re-mixing.

Clear debris from the base surface so it is clean, firm, and free of dust and grease. Roughen shear wall surfaces, and pressure-wash the interface one day before application to remove loose dust.

The single-layer thickness should not exceed 10mm; joints between different materials must be reinforced with alkali-resistant fiberglass mesh, and the surface should be finished promptly after initial water absorption.

Begin water curing 24 hours after completion, recommended twice daily (morning and evening) for 3 days, for a durable, crack-resistant finish.

14-day tensile bond strength is ≥0.3 MPa, and water retention is ≥99%.

Apply at temperatures between 5°C and 40°C. The product is alkaline, so wear gloves during use. Store in a cool, dry place above 0°C, protected from rain and sun; shelf life is 12 months. Remove any crust before use, and never reuse hardened mortar.

Related products