Webertherm SV

Webertherm SV is a cement-based base coat render reinforced with polymer additives, designed for use over XPS, EPS and mineral wool insulation boards in external thermal insulation systems. It is suitable for all building types and provides protection for insulation boards while creating a smooth and durable surface for subsequent finishing layers.

Applications

  • All types of buildings
  • XPS insulation boards
  • EPS insulation boards
  • Mineral wool insulation boards

Application Area: Wall surfaces

Advantages

  • Excellent adhesion to thermal insulation boards
  • Resistant to thermal shock
  • Easy to apply
  • Creates a smooth and uniform surface

These features make Webertherm SV a reliable and durable base coat solution for external thermal insulation systems.

Application Tools

  • Electric mixer
  • Steel trowel
  • Reinforcement mesh

Application Conditions

  • Ambient temperature: +5°C to +30°C
  • Not suitable for weak, unstable or low-strength substrates

Application Thickness and Layer Information

  • Total application thickness: 4 mm
  • Maximum thickness per coat: 2 mm
  • Waiting time between coats: 3–4 hours
  • Waiting time before final coating: Minimum 7 days

Pot Life

Prepared mortar should be used within 3 hours after mixing.

Packaging

  • 25 kg bag

Frequently Asked Questions (FAQ)

Which insulation boards can Webertherm SV be applied to?

It can be used as a base coat render on XPS, EPS and mineral wool insulation boards.

What is the recommended application thickness?

The total thickness should be 4 mm, with a maximum of 2 mm per coat.

How long should I wait between coats?

A waiting period of 3–4 hours is recommended between coats.

When can the final decorative coating be applied?

The final coating can be applied after waiting at least 7 days.

What should the ambient temperature be during application?

The recommended application temperature is between +5°C and +30°C.

Can it be applied on low-strength surfaces?

No. It should only be applied on sound, stable and adequately strong substrates.