Rendermix Plastering Additive - Biokil Crown

£14.40

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Biokil Crown Rendermix is a liquid plasticising additive for cement and sand render mixes. It improves workability, reduces water demand, and minimises cracking. Ideal for internal and external plastering, it ensures a smooth, easy-to-apply finish with enhanced adhesion and reduced shrinkage.

Size

5 Litre 25 Litre

Product variants

Delivery and Shipping

Place your order before 3pm for next working day delivery.

Please note: Additional delivery charges may apply for Northern Ireland, Isle of Wight, Isle of Man, Isles of Scilly, Scottish Highlands & Islands, and Channel Islands. We will contact you to inform you of any additional costs once your order is received, or you can call us on 0800 111 4898 beforehand to confirm.

Description

Water-Reducing, Plasticising Agent for Cement & Sand Render and Plaster Mixes

Biokil Crown Rendermix is a high-quality plastering additive designed to improve the workability and performance of cement and sand-based render mixes. Acting as both a plasticiser and water-reducing agent, Rendermix produces a smooth, creamy render that is easier to apply, reduces cracking, and enhances adhesion to substrates. Ideal for both internal and external plastering applications.

Key Features & Benefits

Improved Workability: Enhances mix flow, allowing for smoother, easier plaster application.
Water Reduction: Reduces water demand in mixes without compromising performance or coverage.
Minimises Shrinkage: Helps reduce cracking and crazing in the finished render or plaster coat.
Enhanced Adhesion: Promotes better bonding to substrates including brick, block, and concrete.
Compatible with Hand or Machine Application: Suitable for site-mixed and spray-applied renders.

Product Details

Type: Liquid plastering additive and plasticiser
Usage: Internal and external render/plaster applications
Dosage: Approx. 150ml per 25kg cement (follow product label for precise guidance)
Packaging: Available in various sizes including 5L and 25L containers
Colour: Brown liquid

Application Instructions

Mixing: Add the required dosage of Rendermix to gauging water before mixing with cement and sand.
Combine Materials: Mix thoroughly until a consistent, workable texture is achieved.
Apply Render: Use standard plastering techniques for hand or machine application.
Cure as Normal: Follow normal curing practices for cementitious renders and plasters.

Limitations

Do not overdose – excessive use may affect set time and strength.
Not recommended for use with gypsum-based plasters.

Health & Safety

Wear suitable protective clothing, gloves, and eye protection. Avoid direct contact with skin and eyes. Refer to the Safety Data Sheet (SDS) before use.