Proctor Spacetherm MgO Ready Mix Filler Adhesive is a high-performance mineral-based filler and adhesive specifically designed for the installation and finishing of Spacetherm Multi, Spacetherm Wall Liner and other magnesium oxide-faced insulation board systems. Developed to complement Proctor Spacetherm products, this ready-mixed formulation combines excellent bonding performance with vapour permeability, helping to maintain the long-term thermal performance of the building envelope.
Suitable for use with high-performance laminate insulation boards incorporating aerogel insulation and aerogel blanket technology, the product provides a strong bond while allowing moisture vapour to pass through the construction. This helps reduce the risk of trapped moisture within the wall structure and supports healthy, breathable building design.
Its fine consistency makes it easy to apply and finish, creating a smooth surface ready for subsequent decoration or plastering. Free from cement and other harmful co-binders, the non-hazardous formulation is ideal for refurbishment, retrofit and new-build projects where thermal performance and moisture management are important considerations.
Supplied ready to use, Proctor Spacetherm MgO Ready Mix Filler Adhesive offers a practical and efficient solution for insulation board installation, joint filling and surface preparation.
Key Features
- Specifically Designed for Spacetherm Systems: Formulated for use with Spacetherm Multi, Spacetherm Wall Liner and magnesium oxide-faced insulation boards.
- High-Performance Bond Strength: Provides a durable bond between insulation boards and suitable building substrates.
- Vapour Permeable Performance: Allows moisture vapour movement through the wall construction.
- Suitable for Aerogel Insulation Systems: Ideal for high-performance laminate boards incorporating aerogel blanket technology.
- Smooth Surface Finish: Fine consistency enables easy application and finishing.
- Supports Thermal Performance: Helps maintain the thermal performance of insulation systems.
- Non-Hazardous Formulation: Safe and easy to use in residential and commercial building projects.
Applications
- Installation of Spacetherm Multi boards.
- Installation of Spacetherm Wall Liner systems.
- Magnesium oxide (MgO) insulation board projects.
- Spacetherm MgO Filler Adhesive is a mineral based filler and adhesive in one
- Its mineral silicate based product formula is ideal for installing Spacetherm boards.
- Vapour permeable formulation helps maintain breathable wall constructions.
- Available in convenient 6kg and 12kg tubs for easy handling.
- This filler has a high bond strength and very fine consistency
| Product Code | MgO Filler Adhesive |
| Brand | Proctor |
| Product Size | 6kg, 12kg |
| Base | Natural Minerals and Water-Glass |
| Resistance to Temperature | <5C or above 30C. |
| Application Method | Broad Brush |
| Order Quantity | Delivery Charges |
|---|---|
| 1 - 3 Rolls | £36 +VAT |
| 4- 6 Rolls |
£65 +VAT |
| 7 - 35 Rolls | £100 +VAT |
Returns And Refunds
- Once confirmed, Order cannot be cancelled.
- The products can be returned if ordered in excess or not required anymore, within 14 days of delivery. The Returned Goods will be returned to us at the cost and risk of the Customer.
- In case of damaged products, please email us within 24hrs of delivery via email, chat or phone and we will assist accordingly

