
Development and distribution of fast-setting magnesium phosphate cement special concrete for repairs from -45 °C to 50 °C
Coolkrete Zimmer und Ehrlich GbR
Zahna-ElsterNew on Amplifa
About Coolkrete
Coolkrete Zimmer und Ehrlich GbR is a construction materials manufacturer based in Zahna-Elster in Saxony-Anhalt. The company was formed in 2025 through the business succession of Greenline Technologies GmbH from Brüggen (NRW) and has marketed their proven products Fricon and Multikrete under the Coolkrete brand since 2025. The product range comprises fast-setting 2-component repair mortars and concretes based on magnesium phosphate cement: Fricon is designed as a special concrete for cold conditions down to -45 °C, Multikrete as a high-performance rapid-setting concrete for 5 to 50 °C, complemented by the thin-layer self-levelling mortar Multikrete Flooring. The materials are polymer- and acrylate-free (fire protection class A1), VOC-free, applicable without primer or after-treatment and practically low-shrinkage. Surfaces can be walked on after around 20 minutes and bear loads of up to 90 kN. Areas of application are concrete repairs on industrial floors in cold stores, deep-freeze logistics, food processing operations as well as indoor and outdoor applications. For application, Coolkrete arranges experienced specialist contractors via cooperation partners. Delivery takes place domestically and abroad in pre-packaged containers with precise mixing ratios.
- Site
- Zahna
- Processes
- Fricon CF 45/26/10 – 2-component repair mortar/concrete (rapid setting, cold application), MULTIKRETE – 2-component repair mortar/concrete (rapid setting, Standard and JM), MULTIKRETE Flooring – 2-component self-levelling mortar (thin layer, rapid setting), Arrangement of specialist contractors for application (renovation/application via cooperation
- Materials
- Fricon CF 45/26/10 Standard/JM – 2-component repair mortar/concrete (magnesium phosphate cement,, MULTIKRETE Standard/JM – 2-component repair mortar/concrete (magnesium phosphate cement, polymer-, MULTIKRETE Flooring – 2-component self-levelling mortar (magnesium phosphate cement, polymer- and, Aggregate gravel 3-8 mm (addition max. 15% with MULTIKRETE JM), Magnesium phosphate cement (Fricon CF 45/26/10), Magnesium phosphate cement (Multikrete Standard/JM), Magnesium phosphate cement (Multikrete Flooring), Aggregate
- Certificates
- TÜV food-sector approval, Declaration of Performance (DoP) pursuant to the EU Construction Products, DIN EN 13813 (CT-C 40 F 7 A 7), Fire protection class A1 (DIN EN 13501-1)
- Industries
- Food processing, Cold stores/deep-freeze logistics, Industrial floor renovation
- 01
Development and Declaration of Performance (DoP)
- 02
Packaging into pre-assembled containers (buckets and canisters)
- 03
Distribution domestically and abroad
- 04
Arrangement of specialist contractors for application
Materials & Processes
Magnesium phosphate cement (Fricon CF 45/26/10)
Fast-setting 2-component repair mortar/concrete for application temperatures down to -45 °C in cold stores and deep-freeze areas.
Magnesium phosphate cement (Multikrete Standard/JM)
High-performance rapid-setting concrete for concrete repairs at 5 to 50 °C with short blocking times, without primer or after-treatment.
Magnesium phosphate cement (Multikrete Flooring)
Thin-layer self-levelling mortar from approx. 2 mm layer thickness for renovating extensively damaged concrete floors.
Aggregate
Addition of max. 15 % with Multikrete JM to adjust the consistency.
Locations

Zahna
DEHeadquarters, sales and distribution
- Materials
- Fricon, Multikrete, Multikrete Flooring
- Pre-packaged containers (buckets and canisters)
Products


Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Fricon CF 45/26/10 – 2-component repair mortar/concrete (rapid setting, cold application)Casting | – | – | – | – | Fricon CF 45/26/10 Standard/JM (magnesium phosphate |
| MULTIKRETE – 2-component repair mortar/concrete (rapid setting, Standard and JM)Casting | – | – | – | – | MULTIKRETE Standard/JM (magnesium phosphate cement-based, |
| MULTIKRETE Flooring – 2-component self-levelling mortar (thin layer, rapid setting)Casting | – | – | – | – | MULTIKRETE Flooring (magnesium phosphate cement-based, |
Additional services
Quality & Certification
The harmlessness of using Fricon and Multikrete in the food sector is certified by TÜV. Declarations of Performance (DoP) pursuant to the EU Construction Products Regulation are available for all products with classification DIN EN 13813: CT-C 40 F 7 A 7, as well as test certificates for compressive strength, shrinkage behaviour and slip resistance.
| Evidence | Zahna |
|---|---|
| TÜV food-sector approval | |
| Declaration of Performance (DoP) pursuant to the EU Construction Products | |
| DIN EN 13813 (CT-C 40 F 7 A 7) | |
| Fire protection class A1 (DIN EN 13501-1) |
History
- 2025
Business succession of Greenline Technologies GmbH from Brüggen (NRW); their products Fricon and Multikrete have been marketed under the Coolkrete brand since 2025.