Interior and existing-building walls
PURE THERMO · Application · Development route
Interior
Defined development route for thermal interior, existing-building and detail applications.
B · internally documented
Important maturity noteThis page describes a system definition and an ongoing test programme, not a completed building-authority approval.
Problem & route
Interior surfaces need thermal function without massive build-up.
Pure Thermo Interior addresses interior walls, cellars, cold surfaces, reveals and details where conventional insulation systems are limited by space or construction.
The route is not a general mould-prevention claim or whole-building energy upgrade. It defines a system build-up from substrate to primer, PURE THERMO and optional finish.
Application scope
Intended applications
Cellars and cold interior surfaces
Reveals, connections and details
Not generally released yet
Arbitrary organic substrates, wood, steel, gypsum / drywall systems without separate testing, and actively damp components are not generally released for this route.
Layer build-up — working status
01Existing mineral substrate
02Pretreatment / primer
03PURE THERMO
04Optional finish
ImportantLayer thickness per spray pass is not automatically the released total system thickness.
Substrate matrix — starting point
| Substrate | Status | Remark |
|---|---|---|
| Concrete | intended | Define final pretreatment and adhesion test route. |
| Mineral render | intended | Check substrate strength and compatibility. |
| Masonry | intended | Object-specific preparation required. |
| Gypsum / drywall | not generally released | Separate testing required. |
| Wood | not part of this route | Separate system route required. |
| Steel | not part of this route | Industrial / special route separately. |
Existing technical basis
An external core test exists for the product-side thermal value foundation. Assignment to the current Pure Thermo formulation is still being documented.
View Pure Thermo technical core values →System tests still to be closed
- Clear final product / formulation assignment
- Final system build-up
- VOC / interior air
- Adhesion on defined substrates
- Water / moisture behaviour in the system
- Hygrothermal assessment
- Minimum fire behaviour
- Object-specific mould / condensation assessment
- Final technical data sheet
- Application and quality-assurance guide
Application process
- Assess substrate and moisture cause.
- Prepare the substrate.
- Apply defined pretreatment / primer.
- Apply Pure Thermo according to the released system build-up.
- Document drying and layer thickness.
- Use an optional finish only after system release.
- Complete quality control and site documentation.
Quality assurance
Document object and component, substrate type and condition, moisture assessment, batch number, temperature, relative humidity, consumption, layer thickness, application date, photographs, applying contractor and release / acceptance.
Technical limits
- No sealing against constructive or penetrating moisture.
- No general energy-performance release.
- No general substrate release.
- No general mould-prevention claim.
- No general funding claim.
Evidence
A · externally tested· Kiwa GmbH
Bestimmung der Wärmeleitfähigkeit THERM 4410
DIN EN 12664:2001-05 · Report P000517940 · 2025-06-10
Is PURE THERMO suitable for your project?