Diamond Wall Reinforcing Primer is a polymer emulsion-based substrate conditioner made to stabilize porous, friable, degraded mineral surfaces. Ultra-fine polymer particles penetrate 3–5mm into capillary structures of concrete, plaster and masonry, forming a secondary reinforcing layer to seal the substrate from inside out. This water-based, low-VOC product works on concrete, aerated concrete, plaster walls, putty layers and floor substrates for renovation and new build projects.
The Diamond Wall Reinforcing Primer is a surface conditioner that penetrates deeply and is composed of polymer emulsion and multifunctional additives.. Chemical consolidation occurs within the substrate upon application, resulting in the formation of a reinforcing layer that enhances water resistance, sealing performance, and surface hardness. It establishes a stable foundation for flooring systems, tile, or topcoats.
The material is able to penetrate the substrate due to its low viscosity, as opposed to forming a thin film on the surface. This distinguishes it from conventional surface primers.
| Parameter | Value / Description |
|---|---|
| Composition | Polymer emulsion + multi-functional additives |
| Solid Content | 25–35% |
| Penetration Depth | Up to 3–5mm (depending on substrate porosity) |
| Tensile Bond Strength | >1.5 MPa (ASTM D4541) |
| Alkali Resistance | pH 12+ tolerance |
| VOC Level | Low VOC |
| Application Method | Roller or brush |
| Recommended Consumption | 0.1–0.15 kg/㎡ per coat |
| Storage Temperature | 5°C to 35°C |
| Storage Conditions | Cool and dry place |
| Overcoating Window | Apply topcoat within 24–48 hours for best bonding; primer active up to 7 days |
1. Sand-Fixing Performance: Locks fine particles to prevent the surface from crumbling, sanding substrates, powdering putty layers, and dusting floors by binding loose, dusty, and powdery surfaces.
2. Deep, Inside-Out Reinforcement: The internal structure of the substrate is fortified prior to the application of the varnish by ultra-fine polymer particles and low viscosity, which penetrate 3–5 mm into the substrates rather than forming a surface film.
3. Water-Based, Low-VOC Formula: Offers minimal odour during application and low VOC levels; suitable for domestic home renovation and occupied building refurbishment.
This reinforcing primer is designed for problematic substrates that cannot receive paint or tile directly. It can be used on:
Wall sanding and floor sanding — surfaces that release dust or powder when touched Putty layer powdering — loose putty with low cohesion Concrete after putty removal — exposed, rough or porous concrete Low-hardness top putty layers — soft surfaces needing consolidation before renovation Poor-bonding inferior mortar substrates — surfaces with weak inter-layer adhesion Interface treatment layers — between concrete, aerated concrete, and plastering
For floor works, it also serves as preparatory coating before waterproofing systems or tile installation.

Old House Renovation: Seals walls that are weak, powdered, or flaking prior to painting or puttying to prevent delamination.
Industrial Floor Pretreatment: Establishes a more robust mechanical bond by preparing porous concrete for epoxy/polyurethane topcoats.
Coastal and high-humidity environments: Extends the service life of the coating system by reducing moisture and saline intrusion.
Masonry & Heritage Restoration: Reduces inter-layer separation by consolidating fragile lime-based substrates prior to the application of topcoats.
JOSME implements batch quality control for this product, which encompasses four critical inspection points:
Subsurface infiltration is verified through dye tracing during penetration depth testing. Adhesion Strength Testing: ASTM D4541 pull-off testing at >1.5 MPa Efflorescence Resistance Testing: This test measures the blocking effect of migrating salts. Polymer film remains stable at pH 12+, as evidenced by alkali and saponification resistance testing.
Before shipment, each batch undergoes raw material incoming inspection, in-process monitoring, and finished product testing.

For long-distance sea freight, JOSME implements export-grade packaging that is reinforced to mitigate transit damage and leakage.
Private-label solutions, custom packaging, and matched formulations are available upon request. Orders for standard products are typically dispatched within two to three business days. Private-label orders and custom formulas require 7–15 working days.

Q1: The wall releases powder on touch. Can I skip the reinforcing agent and apply latex paint directly?
A1: It is not advisable to apply direct painting over a loose, powdery substrate. There is a possibility that paint film will separate due to its inability to adhere securely. Before applying topcoats, apply Diamond Wall Reinforcing Primer to consolidate porous surfaces.
Q2: How long should I wait after primer application before puttying or tiling?
A2: Wait for full drying and hardening of the primer. Putty or tile work carried out too early will reduce consolidation effect. Drying time changes with site temperature and ventilation.
Q3: Will strong odor occur during application?
A3: The water-based formula creates mild odor only. Normal ventilation is enough during application, and it fits indoor renovation projects.
Q4: Can it be applied on damp walls?
A4: Substrate moisture below 15% is recommended. This water-based product can be used on damp surfaces, but not fully saturated substrates.
Send us your project questions or price requests for Diamond Wall Reinforcing Primer via [email protected].