CMC Finnfix (Organic Polymer)
Description
Added to glazes, as thickning agent, for application by brushing, generally incorporate up to 5% of binder.
Mix with a glaze stirrer attachment or hand blender untill glaze is smooth, this usually takes up to 40 minutes with an electric mixer.
Also useful in 0.5 - 2% addition to avoid colour transfer or for majolica painting.
Carboxymethyl cellulose
Health & Safety
- When handling powdered ceramic materials in the UK, you must wear an FFP3/P2 face mask and nitrile gloves to prevent inhalation and skin contact.
- Wear a wipeable apron, polyester overalls, or similar. Clean or wash frequently.
- Always clean your studio with a wet sponge rather than sweeping to stop dust from becoming airborne.
- When preparing glazes, add the dry material to water, not vice-versa, to minimise dust formation.
- Do not allow eating and drinking in the studio and thoroughly wash hands when leaving.
- Never eat, drink, or apply cosmetics in areas where clay or glazes are handled.
- Ensure emergency eye-washing facilities are available in the room.
- Review official guidelines regarding studio ventilation and chemical management routinely.
Finnfix (Sodium Carboxymethyl Cellulose / CMC) is not classified as a hazardous substance under UK/EU regulations.
May cause slight mechanical irritation (like dust in the eye). Treat by flushing gently with water.









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CMC Finnfix (Organic Polymer)
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