Knauf TP 65 XLITE & VELVET Plasters – A Complete DIY Guide 2026

Plaster plays a fundamental role in preparing building surfaces: it levels rough masonry, must be formulated to allow the wall to “breathe” and prevent condensation, and must be homogeneous, compact, and provide a suitable base for finishing. With these two new plasters, Knauf aims to meet the most common requirements for residential finishes. The quality of the materials and the care taken in the production process are the strengths of both products.

Knauf TP 65 XLITE – Lightweight Thermal Insulating Plaster

TP65 XLITE is a lightweight, thermal-insulating plaster based on calcium sulfate, hydrated lime flower, and natural Sardinian perlite. Lime flower (the name says it all) is the purest part of hydrated lime, completely free of impurities that may be present in slaked lime putty. This is mainly due to the different processes used to “slake” the lime: immersion for putty, while flower is obtained by sprinkling. This ensures superior plasticity and smoothness, guaranteeing a smooth finish. The natural bases of these two new plasters allow them to be classified as biocompatible and fully in line with the requirements of bio-architecture.

Perlite is another key component for TP65 XLITE: it gives the product lightness and improves its thermal-acoustic insulating properties; the porous structure of the plaster makes it a highly vapor-permeable substrate. For a flawless application, make sure your home improvement tools and materials are ready.

Knauf VELVET – Premium Mirror Finish Plaster

The base of Velvet is natural gypsum stone, selected in the quarry for its high degree of whiteness and fired in kilns under strict parameter control. The addition of micronized marble powder, pure lime flower, and plasticizing and thickening additives of natural origin results in a premixed product suitable for creating high-quality mirror finishes, both horizontally and vertically. For the best results, consider pairing it with quality lighting fixtures to highlight the smooth surface.

Key Features & Benefits

• Biocompatible: Made from natural materials, ideal for eco-friendly building.
• Vapor Permeable: Helps walls breathe, reducing condensation and mold risk.
• Thermal & Acoustic Insulation: Perlite in TP65 XLITE improves energy efficiency and soundproofing.
• Smooth Finish: Velvet delivers a mirror-like surface perfect for high-end interiors.
• Easy Application: Pre-mixed formulas save time and ensure consistency.

Application Tips

Before applying, ensure your substrate is clean, dry, and primed. Mix the plaster according to the manufacturer’s instructions. For large areas, use a hawk and trowel for even coverage. Work in thin layers, allowing each coat to set before applying the next. For the finishing touches, you might also upgrade your wall decor to complement the new plasterwork.

Frequently Asked Questions

Can Knauf TP 65 XLITE be used on ceilings?

Yes, its lightweight formula makes it suitable for ceilings, reducing the risk of sagging. Ensure proper surface preparation and use appropriate home improvement supplies.

Is Velvet plaster suitable for bathrooms?

Yes, but it must be sealed with a suitable vapor-permeable paint or wax to protect against moisture. Good ventilation is also recommended. Consider installing a bathroom vanity to complete the look.

How long does each plaster take to dry?

Drying time depends on temperature, humidity, and layer thickness. Generally, allow 24-48 hours between coats. Use a space heater in colder months to speed up drying.

Can I paint over Knauf Velvet?

Yes, after full curing (usually 7 days), you can apply any high-quality interior paint. For best results, use a primer first.

Where can I buy Knauf TP 65 XLITE and Velvet?

These products are available at major building supply stores. For other renovation needs, check out our selection of kitchen islands and carts, dining tables, sofas, beds, rugs, and curtains to furnish your newly plastered rooms.

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