It is an interior paint that is Moisture-proof & Mildew-resistant Interior Paint created from an eco-friendly acrylic emulsion base that creates a compact and stable coating. It is resistant to fading and to typical mould on interior walls. It inhibits moisture vapour penetration.
Performance: 0 mildew resistance (ASTM D3273), 5,000+ scrub cycles, VOC <30 g/L It is intended for wide area use in high humidity interiors with a normal usage of 0.2-0.25 kg/㎡.
They peel and swell with alkali, get mould in moist places. Moisture-proof & Mildew-resistant Interior Paint is designed to solve these failure problems.
The SD value of the cured film is less than 0.14 m. This vapour permeable construction allows the moisture in the wall to escape slowly, so that it does not build up between coating and substrate and therefore guarantees the durability of the wall foundation.
It also undergoes particular testing against common indoor moulds such as Aspergillus niger and Penicillium, which grow in poorly ventilated damp conditions.
Grade 0 Mould Resistance: Tested to ASTM D3273, it is mold-free for long-term protection in damp interior environments.
Consistent concealing power. Uniform coverings. little need of re-painting. Speedier on-site labour.
Scrub resistance: >5,000 cycles (ISO 11998). Washes regularly to keep walls appearing fresh.
High Construction efficiency: Consumption 0.2-0.25kg/㎡ Less Wastage For large projects
The increased resin content reduces surface porosity and will stand up to moisture better than traditional matte paints in damp environments.
| Parameter | Details |
|---|---|
| Base Material | Eco-friendly acrylic emulsion |
| Mildew Resistance Grade | Grade 0 (ASTM D3273) |
| VOC Content | < 30 g/L |
| SD Value (Water Vapor) | < 0.14 m |
| Scrub Resistance | > 5,000 cycles (ISO 11998) |
| Adhesion Strength | > 1.5 MPa |
| Recommended Consumption | 0.2–0.25 kg/㎡ |
| Finish Dilution Ratio | Water, 10%–15% |
| Primer Dilution Ratio | Water, approx. 10% |
| Construction Temperature | Ambient > 5°C |
| Base Drying Period | > 21 days; pH < 10; moisture content ≤ 10% |
| Storage Temperature | 5°C to 35°C, cool and dry |
| Coating System | Putty layer + Primer layer + Finish layer |
| Packaging (Finish) | 20 kg/drum |
| Packaging (Primer) | 20 kg/drum |
| Packaging (Putty) | 20 kg/bag |
Recommended for long term high humidity environments where regular paints fail early.
Cellars, subterranean parking, walls on the first level, toilets, kitchens, poorly ventilated places.
Commercial & Institutional Hotel walls, hospital wards and corridors, school classrooms, workplaces particularly at ground level and below where condensation is likely to occur.
Special Situations: Wine Cellars, Food & Beverage Factories, Underground Industrial Facilities with minimal air flow.
And clean and disinfect existing mould prior to building. This substance stops new mould development, but does not kill existing spores.

JOSME has a thorough three stage quality control system which includes: incoming raw material inspection, in process production monitoring and completed product performance testing. Batch samples are stored forever to guarantee each batch of manufacturing is the same.
The product core testing standards are as follows: ASTM D3273 Mould resistance test using continuous temperature and humidity chamber ASTM D5590: Accelerated Antibacterial and Mildew Efficacy Test Using the Agar Plate Method ASTM E96 Test for water vapour transfer rate of paint film Batch VOC detection: Keep VOC content stable at 30 g/L
JOSME has a comprehensive range of recognised system and product certifications: ISO 9001, ISO 14001, ISO 45001, ISO 50001 FDA, MSDS qualification files China Environmental Label Certification, China Green Moisture-proof & Mildew-resistant Interior Paint Certification
Relevant qualification documentation and test results can be given to assist project bidding, construction submission and acceptance inspection.

Our speciality is customisation: colour matching, particle size control, private label packaging, and formula optimisation to meet your project needs.
Lead Time: Standard Items – 2-3 working days Bespoke colour, formula and private label orders – 7-15 working days.
We do reinforced packing for all export orders along with proper shipping documents for customs clearance.

Q1: What requirements show mildew-proof performance?
A1: Environmental chamber, ASTM D3273 and agar plate testing, ASTM D5590. Mildew Resistance: ASTM D3273, Grade 0 being the best.
Q2: How is it different from regular interior latex paint?
A2: Regular latex is only a decoration. It provides a dense vapour permeable film with excellent moisture-proof and mildew-proof properties for humid situations that regular coatings can't deal with.
Q3: Can you paint right over mouldy walls?
A3: No, any existing mould should be cleaned and disinfected first. This covering prevents the mould from coming back again, but it does not kill the mould spores already in the wall foundation.
Q4: Can it fix wall leaks and damp rising?
A4: Not resistant to interior moisture and vapour, will not withstand continuous water pressure from structural leaks. Professional waterproof membrane construction is the first step to fix leaking walls.
For project consultation, sample application and bulk procurement of Moisture-proof & Mildew-resistant Interior Paint, please contact our team via official email: [email protected].