Is there a glue or varnish that is heat resistant?

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I need your help. I'm making coasters by mod podging coffee beans onto wooden squares. I have coated it with a layer of varnish, but I'm wondering if someone knows a better protective layer that I could finish them with -that is also heat resistant so the mod podge will definitely not meltl? Thanks for your help.
q heat resistant glue or varnish, crafts, decoupage, Coffee Coasters for etsy
Coffee Coasters for etsy
  10 answers
  • Grady Grady on May 15, 2015
    You know what, I think there is. I don't know what it's called. But I'm pretty sure there is one.

  • Mimi Ka-rick Mimi Ka-rick on May 15, 2015
    The Loctite Glass Glue provides invisible repairs to all types of glass, including crystal and stained glass. The glue will also bond glass to metal. The waterproof glue is heat resistant and dishwasher safe.

  • Collette barnes Collette barnes on May 15, 2015
    I think there might be a clear spray in the spray paint section? Might be adhesive too ? Those are super cute BTW!!

  • Millie Allen Millie Allen on May 15, 2015
    use a clear polyurethane spray. You can also use a polyurethane brush on type clear

  • Bette Miller Wolfert Bette Miller Wolfert on May 16, 2015
    As long as you don't use them under pans just removed from thre stove, most urethane or verethene finishes should work, cause the coffee cups shouldn't get that hot. Keep in mind that a coaster is meant to keep moisture from getting on your table, and if you coat it too heavily with anything, that moisture will roll off the coaster and onto your table, or it will remain on the bottom of the cup or glass and drop off onto your clothes or table top. Actually, these coasters would be the absolute perfect answer to keeping that from happening if they were simply coated lightly and made with little tiny sides [as if they were inset in a frame.] I am completely in love with your idea. You obviously took a lot of time on the design. They would also look great with a scattered look. They are really lovely and would fit into anyones decor. Coffee beans for coffee cups. Pure genius. I think I am doing this. Thanks for sharing.

  • Vicki Vicki on May 16, 2015
    I saw a Pinterest post where a lady used a two part clear epoxy resin on her modge podge tile coasters. Thinking she said it was heat proof. She said it was better than just modge podge glue or polyurethane. Try searching tile coasters epoxy resin on Pinterest, maybe it will come up.

  • Alene Jones Alene Jones on May 17, 2015
    believe it or not but gorilla glue does great! I used it to repair a favorite bowl and use it in microwave all the time with no problems

  • Sissy Sissy on May 18, 2015
    Rust-oleum makes an automotive enamel in clear spray which is made for hot engines

  • Pamela Markey Pamela Markey on Oct 18, 2021

    I use a polyacrylic for heat resistance. I bought it at Lowe’s in their paint section. Also there is a lady on YouTube that discusses various finishes for all types of projects. I don’t remember her name. But type in key words and I think you will find her.