
weberdry PUD coat is a professional-grade, one-component hybrid waterproofing membrane. Engineered for maximum elasticity and UV stability, it provides a seamless protective barrier for exposed rooftops and balconies.
PRODUCT DESCRIPTION
Quick Specs
KEY TECHNICAL FEATURES
APPLICATIONS & BENEFITS
TECHNICAL SPECIFICATIONS TABLE
| Specification | Detail |
| Compliance | Industry Standard Compliant |
| Material Composition | Polyurethane Dispersion (PUD) Hybrid |
| Appearance | Liquid Membrane (Grey/White) |
| Elongation at Break | >300% (ASTM D412) |
| Tensile Strength | High-Tensile Performance |
| Finish/Coating | UV-Resistant / Tahan Karat & Cuaca |
| Curing Time | 24–48 Hours for Full Service |
| Specification Category | Technical Details |
| Colour | Grey / White |
| Density | 1.35kg/l @ 23°C |
| Shelf Life | 12 months from date of production |
| Service Temperature | Between 5°C to 40°C (improved system) |
| Substrate Temperature | Between 5°C to 35°C |
| Substrate Condition | No standing water/condensation on the substrate to be coated |
| Air Humidity | Maximum 80% RH |
| Dew Point | Surface temperature must be +3°C above the dew point |
| Pull-Off Adhesion Strength | ≈ 1.0 N/mm² (ASTM D7234) |
| Elongation at Break | > 400% (ASTM D412) |
| Stage | Duration |
| 1st Coat to Primer | 1 – 2 hours |
| Over Coat Time | 4 – 6 hours |
| Final Coat to Reinforcement | 12 – 24 hours |
| Curing Time | 48 hours |
| System Type | Priming Coat | 1st Coat | Reinforcement | Final Coat |
| Standard System | 0.4 kg/m² (Dilute with 10% water) | 0.5 kg/m² | – | 0.5 kg/m² |
| Improved System | 0.4 kg/m² (Dilute with 10% water) | 0.5 kg/m² | 0.5 kg/m² + 1 layer webertape fibermesh 100 | 0.5 kg/m² |


FAQ SECTION
Question 1: What is the recommended waterproofing for RC flat roofs in Malaysia?
Answer 1: For exposed RC flat roofs, a UV-resistant liquid membrane like weberdry PUD coat is highly recommended. It is engineered to withstand Malaysia’s extreme thermal expansion and heavy monsoon rainfall without the seam-failure risks associated with traditional sheet membranes.
Question 2: How do you treat hairline cracks before applying PU coating?
Answer 2: All hairline cracks must be cleaned and primed. For superior structural integrity, Kee Maju Jaya recommends the “Reinforced System,” which incorporates webertape fibermesh 100 into the weberdry PUD coat layers to bridge movement areas effectively.
Question 3: Is weberdry PUD coat suitable for high-humidity coastal projects?
Answer 3: Yes. Its hybrid polyurethane dispersion formulation is specifically designed to resist blistering and moisture-related failures common in Malaysia’s East Coast and high-humidity coastal regions.
Question 4: Can this PU coating be applied on metal roofs?
Answer 4: weberdry PUD coat exhibits excellent adhesion to non-porous substrates. When the metal surface is properly cleaned and prepared, it provides a robust, rust-resistant (Tahan Karat) protective layer that extends the roof’s lifespan.
Soalan 1: Apakah sistem kalis air (waterproofing) terbaik untuk bumbung rata concrete (RC flat roof) di Malaysia?
Jawapan 1: Untuk bumbung terdedah, sistem cecair membran (liquid membrane) tahan UV seperti weberdry PUD coat adalah pilihan terbaik. Ia mampu menangani cuaca panas terik dan hujan lebat tanpa risiko kebocoran pada sambungan (seams) seperti yang sering berlaku pada membran jenis gulung.
Soalan 2: Bagaimana cara merawat retak halus sebelum sapuan coating PU?
Jawapan 2: Semua retak halus perlu dibersihkan dan disapu primer. Untuk ketahanan jangka panjang, Kee Maju Jaya mengesyorkan “Sistem Pengukuhan” dengan menanam webertape fibermesh 100 di antara lapisan weberdry PUD coat untuk mengukuhkan kawasan yang mengalami pergerakan struktur.
Soalan 3: Adakah weberdry PUD coat sesuai untuk projek di kawasan pantai yang lembap?
Jawapan 3: Ya. Formulasi hibrid poliuretana ini direka khas untuk tahan terhadap kelembapan tinggi dan menghalang kegagalan lapisan (blistering) yang sering berlaku di kawasan pantai seperti Pantai Timur Malaysia.
Soalan 4: Bolehkah cecair coating PU ini disapu pada bumbung zink atau metal deck?
Jawapan 4: weberdry PUD coat mempunyai daya lekatan yang sangat kuat pada permukaan bukan organik. Apabila bumbung besi dibersihkan dengan betul, ia berfungsi sebagai lapisan pelindung Tahan Karat yang efektif dan kalis air sepenuhnya.
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Working hours: 8.30 am – 5.00 pm
Saturday – Thursday, excluding public holiday & Friday
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At Kee Maju Jaya Trading Sdn Bhd, we are more than just a building materials supplier—we are your trusted partner in building stronger, more resilient communities.
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