über 100 Jahre Tradition und Qualität
Additives for the Building Industry
GRIMM Metallpulver offers a range of functionally effective products to avoid cracking in combination with technical support and recommendations to optimize formulations and costs. To prevent cracking it is necessary to avoid or at least reduce the shrinkage in dry-mix mortar products. Our EXPANDIT® and OPTONIT® products create a controlled moderate expansion in the matrix which prevents the shrinking process.
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Application Areas / Dosage |
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Dosage recommendations for EXPANDIT® and OPTONIT® |
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Renders |
EXPANDIT® 10: |
0,05 - 0,08 wt. % |
0,5 - 0,8 kg / t |
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OPTONIT® 60: |
0,1 - 0,15 wt. % |
1,0 - 1,5 kg / t |
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OPTONIT® 4H: |
0,2 wt.% |
2,0 kg / t |
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Mortars |
EXPANDIT® 10: |
0,05 - 0,08 wt. % |
0,5 - 0,8 kg / t |
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OPTONIT® 60: |
0,1 - 0,15 wt. % |
1,0 - 1,5 kg / t |
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OPTONIT® 4H: |
0,15 - 0,2 wt.% |
1,5 - 2,0 kg / t |
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Tile adhesive |
EXPANDIT® 10: |
0,04 - 0,08 wt. % |
0,4 - 0,8 kg / t |
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OPTONIT® 60: |
0,08 - 0,2 wt. % |
0,8 - 2,0 kg / t |
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OPTONIT® 4H: |
0,15 - 0,2 wt.% |
1,5 - 2,0 kg / t |
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Grouts and Fillers |
EXPANDIT® 10: |
0,08 - 0,15 wt. % |
0,8 - 1,5 kg / t |
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OPTONIT® 60: |
0,15 - 0,2 wt. % |
1,5 - 2,0 kg / t |
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OPTONIT® 4H: |
0,2 wt.% |
2,0 kg / t |
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Screeds |
EXPANDIT® 10: |
0,05 - 0,1 wt. % |
0,5 - 1,0 kg / t |
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OPTONIT® 60: |
0,15 - 0,2 wt. % |
1,5 - 2,0 kg / t |
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OPTONIT® 4H: |
0,1 - 0,2 wt.% |
1,0 - 2,0 kg / t |
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Cement- bitumen |
OPTONIT®60: |
0,1 - 0,5 wt. % |
1,0 - 5,0 kg / t |
OPTONIT® 4H: |
0,1 - 0,2 wt.% |
1,0 - 2,0 kg / t |
