Varn Defoamer reduces excessive foam in an offset press dampening system.
Add it to the prepared fountain solution. It does not replace the fountain concentrate or investigation of foaming.
Varn Defoamer properties
- Concentrated formula Effective at the low dosage specified in the technical data sheet.
- Rapid foam reduction Supports stable operation of the dampening system.
- Water-miscible Easy to add to a prepared solution.
Technical specifications
| Application | Excessive foam in the fountain solution |
|---|---|
| Form | Ready-to-use defoamer |
| Dosage | 10 ml per 100 l of prepared fountain solution |
| Net volume | 1 l |
How to use Varn Defoamer
- First determine the volume of prepared fountain solution.
- Then measure 10 ml of product for every 100 l of solution.
- Finally, add the measured amount to the system and check the foam-reducing effect.
Practical tips and limitations
This product works at low dosage. Do not increase it based on bottle size. Apply appropriate GMP rules for food packaging production. Read the current safety data sheet before use.
Frequently asked questions
Does Defoamer replace fountain solution concentrate?
No, as it only serves to reduce foam within the prepared solution.
How do I calculate the dosage for 50 L of solution?
At a ratio of 10 mL per 100 L, the dosage for 50 L is 5 mL.
With which concentrates is it compatible?
It is compatible with all types of fountain solution concentrates. Also check the instructions for your dampening system.
Will the defoamer remove deposits from the rollers?
No. Defoamer reduces foam in fountain solution. For calcium deposits on rollers and blankets, use Calcium Deglazer. These require different products and procedures.
Compare other pressroom chemicals by press component and type of residue.


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