Sopro MGR 637 – Multi-Purpose Primer
Quick drying, solvent-free, one-component, reaction resin primer. Particularly for application to calcium sulphate screeds when laying large-format vitrified stone ware units and for stabilising all types of absorbent and non-absorbent substrates. Freshly applied primer to be blended with Sopro QS 511 coarse silica sand. Alternatively, one coat of Sopro HPS 673 bonding primer may be applied.
Coverage: 175 – 350 g / m², depending on substrate (1 – 2 coats)
Sopro MGR 637 is a ready-to-use, fast-drying, one-component, very low-emission polyurethane resin primer. Sopro MGR 637 is water- and solvent-free, easy to apply due to its low viscosity and has a very deep penetration capacity. For preparing calcium sulphate screeds in conjunction with large-format porcelain stoneware.
Related Downloads
TDS Sopro MGR 637 – Multi-Purpose Primer
Smet Professional Tiling Systems Brochure
SMET Floor Screed and Compounds Product Selector
Benefits of Sopro MGR 637 – Multi-Purpose Primer
- For walls and floors, indoors and outdoors
- Specifically for calcium sulphate screeds when laying large-format fully vitrified stoneware units
- Suitable for use in conjunction with wall and floor heating
- Extra-quick-drying
- Ready to receive covering: after 30 – 40 minutes
- Water- and solvent-free
- GISCODE (German hazardous substances classification): RU 1
- DGNB: Top quality level 4, Line 9, based on DGNB (German Sustainable Building Council) criterion ENV1.2 Local Environmental Impact (2018 version)
- For trade applicators only!
Technical Details for Sopro MGR 637 – Multi-Purpose Primer
| Application temperature | From +5 °C to max. +35 °C (substrate, air, material) |
| Walkable | After 30 – 40 minutes |
| Ready to receive covering | After 30 – 40 minutes |
| Specified times | Apply for normal temperature range of +23 °C and 50 % relative humidity; higher temperatures shorten and lower temperatures lengthen these times |
| Coverage | 175 – 350 g / m², depending on substrate (1 – 2 coats) |
| Tools | Short-pile or foam paint roller (e.g. Sopro short-pile roller) |
| Tool cleaning | While still fresh, Sopro MGR 637 can be removed from clothing and tools using thinner/spirit. Once set, material requires mechanical removal. |
| Packaging | Metal canister 10 kg |
Available in 10kg canisters.
NOTE: Do not dilute Sopro MGR 637 with water or solvents. Best processing conditions at +15 °C to +25 °C. Higher temperatures accelerate, and lower temperatures delay the setting of the primer.
