K-Rend Base Coat
K-Rend base coat is the first layer that helps the render bond firmly and form an even base. It is the preferred mix for levelling uneven walls and creating a solid key before adding coloured or finishing coats.
What is K Render Base Coat?
A K Rend base coat is a specially blended render layer designed to enhance surface grip and improve overall render stability. It is applied between the substrate and the finishing coat, acting as a cohesive interface. A perfectly applied K render base coat creates a uniform surface for subsequent renders and helps reduce cracking.
What is the K Rend Base Coat Used For?
This preparatory coat readies walls for their finishing render. Common uses include:
- Preparing and reinforcing masonry or blockwork ahead of the finish layer.
- Evening out rough or damaged backgrounds.
- Creating a consistent surface ready for top coats.
- Reinforcing multi-coat render systems.
- Acting as a bonding coat over mixed or porous substrates.
Popular options like HP12 Base Coat, HP14 K Rend, and HPX Base Coat each address distinct substrate and performance requirements.
Types Of K Render Base
Each type of surface may need a different blend of render base. Popular formulas include:
- K Rend HP12 Base Coat – A general-purpose high-adhesion mix for most rendering backgrounds. It is the most commonly used K Rend first coat for standard substrates.
- K Rend HP14 Base Coat – Finer-grain formulation for extra-smooth finishes. Used mainly when a high-finish outcome is desired.
- K Rend HPX Base Coat – Flexible, polymer-enhanced option ideal for challenging or mixed substrates. It produces excellent results on low-porosity materials.
Benefits Of Base Coat K Render
The right K-Rend base coat means better bonding, among these other benefits:
- Forms a firm, level backing ready for finishing layers.
- Enhances bonding and limits surface movement.
- Minimises cracking and prevents coating separation.
- Formulated with a breathable yet water-resistant composition.
- Easy to prepare and spread using a trowel or spray system.
- Helps maintain the durability and consistency of the render system over time.
Why Choose Our Base Coat For Render?
Builders and renderers rely on Insulation Wholesale for the full K Rend range supply because we offer:
- Genuine HPX, HP14, and HP12 K Rend base coats with BBA marking and BSI Kitemark certification.
- Trade pricing and flexible bulk-buy deals.
- Data sheets and compliance documentation.
- Clear product guidance and friendly support.
- Nationwide supply network.
- Reliable dispatch.
Achieve consistent render quality on every project with K Rend base coats. Choose HP12, HP14, or HPX for dependable bonding and long-term protection, delivered quickly anywhere in the UK.
FAQ
Where to buy K Rend base coat?
Purchase directly from trusted suppliers, such as Insulation Wholesale, for genuine K Rend products and enjoy nationwide delivery to your site or residential address.
How much K Rend base coat per m2?
Typical coverage is approximately 8–10 kg per m² at a thickness of 6 mm, depending on the substrate condition.
How to apply K Rend base coat
- Step: Mix the base coat K-Rend with clean water as directed until a homogeneous mixture is achieved.
- Step: Apply in an even coat using a trowel or spray unit.
- Step: Level off and allow sufficient curing (typically 24 hrs).
- Step: The surface should now be ready for finishing coats.
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K Rend HP12 Base Coat 25kg Bag
K Rend base coat HP12 is specially manufactured with high strength and flexibility. It offers a cement based high polymer mixture ideal for stipple coat and can be used for general block work, masonry and stone backgrounds.£12.65£15.18 Ex VATInc VAT Add to cart -
K Rend HP14 Base Coat 25kg Bag
K Rend HP14 Base Coat offers a highly durable polymer based mixture designed for better adhesion of K Rends thin coat such as silicone TC. It features a water repellent and high resistance levels making it ideal for surface backings such as swimming pools.POA Get a quote -
K Rend HPX Base Coat 25kg
K Rend HPX base coat offers a highly durable and flexible adhesion for stubborn backgrounds. Based on a polymer and reinforced fibre mixture, the K Rend HPX base coat is ideal for larger projects, providing a quick and easy application where needed.
POA Get a quote -
K Rend Spray K1 Top Coat 25kg Bag
K Rend K1 Spray is an easy to use, reliable cement based, polymer modified, self-coloured render that can be hand or spray applied, requiring only the addition of water and 10 minutes mixing time.POA Get a quote


