COSTRA Ready Mix Plaster
Precision-Engineered for Superior Finish & Lasting Performance
In the modern construction landscape, precision, speed, and surface quality are critical for ensuring long-lasting and visually appealing finishes. COSTRA Ready Mix Plaster & Grout is designed to meet these expectations with a professional-grade, pre-blended formula that offers superior adhesion, crack resistance, and a smooth finish across a wide range of masonry substrates.
This high-performance plastering solution combines graded sand, quality binders, polymers, and performance-enhancing additives to deliver exceptional wall finishes without the hassle of traditional on-site mixing. Whether applied on interior walls, exterior facades, ceilings, or soffits, COSTRA Ready Mix Plaster ensures seamless results with minimal material waste and greater construction efficiency.
✅ What Is COSTRA Ready Mix Plaster?
COSTRA Ready Mix Plaster is a cement-based dry mix plaster developed for manual and machine application over blockwork, brickwork, concrete, and RCC surfaces. Unlike conventional site-mixed plaster that relies on inconsistent proportions of sand, cement, and water, COSTRA’s pre-packed formulation guarantees uniformity, quality, and convenience from bag to wall.
With optimized granulometry, water retention capacity, and bonding strength, this plaster not only enhances surface finish but also minimizes shrinkage, cracks, and dust generation.
🛠️ Key Features & Benefits
✔️ Pre-Mixed Convenience
No need to stock, measure, or sieve sand on-site. COSTRA’s ready-to-use formulation simplifies plastering operations and reduces material handling and labor efforts.
✔️ Excellent Adhesion
Designed with polymer modifiers, the plaster ensures strong bonding with a variety of surfaces including AAC blocks, cement blocks, concrete walls, and brick masonry.
✔️ Smooth & Uniform Finish
Ideal for surface levelling and final coats, it provides a consistently smooth, even surface—perfect for paint, wall putty, or wallpaper application.
✔️ Time & Labor Efficient
Due to faster mixing, reduced rework, and ease of application, projects are completed more efficiently, reducing site turnaround time.
✔️ Crack & Shrinkage Resistance
Its unique blend reduces the formation of hairline cracks and eliminates shrinkage-related surface defects over time.
✔️ Suitable for Interior & Exterior Use
Formulated to withstand varying environmental conditions, it is versatile enough for external facades, high-humidity bathrooms, kitchens, and common areas.
✔️ Cost-Effective
Less material wastage, reduced rework, and quicker application make this plaster a cost-efficient choice for builders and contractors.
🏗️ Recommended Applications
COSTRA Ready Mix Plaster is highly adaptable and can be used in various construction environments, including:
- Interior plastering of brick, block, and concrete surfaces
- Exterior rendering for facades and external walls
- Ceiling surfaces and soffits
- High-rise residential and commercial buildings
- Hospitals, schools, and government institutions
- Luxury villas, hotels, and premium interiors
Whether it’s new construction or renovation, this plaster helps achieve the desired finish efficiently and effectively.
📊 Technical Specifications
Appearance: Grey powdered material
- Base: Cement, graded sand, polymer additives
- Water Requirement: ~16–18% of weight
- Mix Ratio: Just add water
- Working Time: 90–120 minutes
- Setting Time: Initial – 90 mins, Final – 4 hrs (approx.)
- Coverage: Approx. 18–20 sq.ft. per 40 kg at 10–12 mm thickness
- Recommended Thickness: 8–12 mm per coat
- Compressive Strength: >7.5 MPa (28 days)
- Bond Strength: >0.5 MPa
- Shelf Life: 6 months when stored in a dry, covered place
📦 Packaging & Storage
- Pack Size: 40 kg laminated moisture-resistant bags
- Storage Conditions: Keep in a dry, covered area away from direct moisture
- Shelf Life: Up to 6 months in original sealed condition
🌍 Environmental & Health Safety
COSTRA Ready Mix Plaster is formulated with eco-friendly materials, ensuring low dust during mixing and application. It is non-toxic, free from harmful chemicals, and safe for indoor air quality. Workers benefit from safer handling and reduced exposure to cement dust compared to traditional plaster mixing practices.
| Feature | Traditional Plaster | COSTRA Ready Mix Plaster |
|---|---|---|
| Sand Sieving Required | Yes | No |
| Manual Mixing | Yes | No |
| Labor Intensive | High | Low |
| Joint Cracks & Shrinkage | Common | Minimized |
| Surface Finish Consistency | Inconsistent | Smooth and Uniform |
| Site Cleanliness | Messy | Cleaner Work Area |
Why Choose COSTRA Ready Mix Plaster?
- Time-tested formulation backed by R&D
- Trusted by leading builders and architects
- Perfect for all climates and surfaces
- Improves final surface preparation
- Helps reduce labor cost and construction time
COSTRA is more than just a construction material—it’s a commitment to quality, productivity, and aesthetics. Let’s try