PYE Premix Plaster 921 (25 kg) – Polymer-Modified Thin Render for Interior & Exterior Use
✅ Product Overview
PYE PREMIX PLASTER 921 is a ready-to-use cement render specially formulated for smooth, durable, and high-quality wall finishes. It comes in a convenient 25kg bag and is widely used for interior and exterior plastering works. The product is designed for easy mixing, strong adhesion, and long-lasting performance, making it a trusted choice for contractors, builders, and DIY users.
The plaster has a light grey colour, giving walls a clean and consistent base finish, ready for painting or additional decorative coatings. With excellent bonding strength and durability, this plaster ensures your walls remain smooth and resistant to cracks.
🏠 Where to Use
PYE PREMIX PLASTER 921 is suitable for:
Interior & exterior walls – cement, block, brick, and rendered surfaces
Residential buildings – living rooms, bedrooms, kitchens, and bathrooms
Commercial projects – offices, retail shops, and industrial facilities
Renovation works – repairing old or uneven wall surfaces
This makes it versatile for both new construction and refurbishment works.
🔧 Surface Preparation
Before applying, ensure that the substrate is:
Clean and sound – free from dust, oil, grease, paint, and mould
Moisture controlled – very dry surfaces should be pre-wetted, but avoid over-wetting as excess water can weaken adhesion
Proper preparation is the key to achieving a smooth and durable finish.
⚙️ Mixing Instructions
Add 4.5 – 5 liters of clean water to a 25kg bag of PYE PREMIX PLASTER 921 (for a 25kg bag, adjust water proportionally).
Mix with a powered drill whisk or mechanical stirrer for 10 minutes until a smooth, trowel-able consistency is obtained.
If the mixture is left standing for less than 30 minutes, re-mix for 1 minute before use.
This ensures consistent workability and prevents lumps.
🖌️ Application Method
Apply using a spray plaster machine or directly with a steel trowel/spatula.
Spread evenly to achieve 5–10mm thickness depending on leveling needs.
For multiple layers, allow the base layer to fully dry before applying the next.
Finish with a trowel or sponge for smoothness.
For an extra refined surface, apply PYE FIL WF 221 or PYE FIL GF 621 skim plaster in 1–2mm thickness.
This step ensures a high-quality finish, perfect for painting or wallpapering.
🧽 Cleaning of Equipment
Wash all tools and equipment with clean water immediately after use.
Hardened plaster can only be removed mechanically.
This saves time and prevents damage to tools.
📦 Packaging & Colour
Packing Size: 25kg bag
Colour: Light Grey
Storage: Keep in a dry place, away from moisture
⭐ Key Benefits
✔ Ready-mixed for convenience
✔ Smooth and durable finish
✔ Easy to apply with hand tools or machines
✔ Excellent adhesion on various substrates
✔ Suitable for both interior and exterior use
✔ Light grey finish, ideal for top coatings
🔍 People Also Ask
1. What is PYE PREMIX PLASTER 921 used for?
It is used for plastering and rendering interior and exterior walls, providing a smooth and durable surface for painting or finishing.
2. How do you mix PYE PREMIX PLASTER 921?
Mix 7–8 liters of water with a 40kg bag (adjust for 25kg) using a mechanical stirrer for 10 minutes until a smooth consistency is achieved.
3. Can PYE PREMIX PLASTER 921 be used outdoors?
Yes, it is suitable for both indoor and outdoor applications on cement, block, and brick walls.
4. What thickness can I apply with PYE PREMIX PLASTER 921?
It can be applied between 5–10mm thickness. For a smoother finish, a skim coat of 1–2mm can be added.
5. What colour is PYE PREMIX PLASTER 921?
It comes in a light grey colour, ideal for preparing walls before painting or decorative finishes.
🏗️ Conclusion
PYE PREMIX PLASTER 921 (25kg) is a high-quality cement render that ensures smooth, strong, and professional wall finishes. Easy to mix, easy to apply, and long-lasting, it is a preferred choice in both residential and commercial projects across Malaysia. With excellent bonding, durability, and workability, this plaster provides the perfect foundation for any wall finish.
👉 Contact Us , If you’re looking for a reliable plastering solution, PYE PREMIX PLASTER 921 is the answer.
