Tin Oxide
Note: Currently not available for delivery to Europe, World Zone A, World Zone 2 and World Zone 1.
Description
The most reliable, oldest, and most widely used opacifier. Produces a softer white and less refractory (neutral) than zircon. 4 - 5% produces semi -opaque glazes 8 - 10% gives a fully opaque glaze.
Health & Safety & Disposal
- When handling powdered ceramic oxides 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.
Tin oxide is not classified as a dangerous substance for supply or transport in the UK. It has no official GHS/CLP hazard codes (H-phrases). However, the fine dust can be hazardous if inhaled, requiring standard PPE and workplace ventilation.
Dispose of as normal industrial waste, in accordance with local/regional/national/international regulations.
Customer Reviews
By Molly Attrill on 2nd October 2025
"Always an excellent, friendly & speedy service.
ps & I am a real person & long term studio potter"

By GillHedge on 13th November 2023
"Brilliant service as usual"

By MichelDucos on 27th July 2023
"Good and prompt. Thank you."

By Gillhedge on 17th April 2023
"Excellent service ,arrived well before estimated "

By SueCoales on 3rd February 2022
"I am using this for an experiment to tint glass. It makes a lovely white for beadmaking! Excellent service - thank you"









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