ArtResin lists wax paper and parchment paper among the materials its epoxy won’t adhere to, and Sculpey lines baking sheets with parchment so polymer clay lifts off once cool. Reynolds rates its parchment for the oven up to 425°F and says wax paper isn’t oven safe.
What each maker says
| Maker | Use | What the maker says |
|---|---|---|
| ArtResin | Epoxy resin | Its resin adheres to almost every material except plastic, silicone, plexiglass, vinyl, wax, wax paper and parchment paper |
| Sculpey | Baking polymer clay | Line the baking sheet with parchment; pieces should come right off after cooling, and the bottoms won’t turn shiny |
| Sculpey | Working surface | Parchment protects tables, since the plasticizers in clay can harm wood furniture; keep it for next time unless it’s too soiled |
| Plaid | Fabric Mod Podge | Covers the work area with wax paper, then lifts the wet fabric off and hangs it to dry |
| Reynolds | Kitchen parchment | Oven safe up to 425°F; wax paper is microwave safe but not oven safe |
From ArtResin’s and Sculpey’s blogs, Plaid’s project instructions and Reynolds’ product FAQ. Plaid lifts the fabric while it’s wet and doesn’t say dried Mod Podge comes off wax paper.
Parchment or wax paper?
Reynolds says wax paper is thin paper with a wax coating, and that its parchment has a natural non-stick coating made by a parchmentizing process. Sculpey’s blog describes it differently: most parchment paper has a silicone coating, it says, while wax paper is coated in wax. Both makers agree wax paper stays out of the oven, and Sculpey says its coating will melt and smoke under high heat.
Leaching with polymer clay
Sculpey warns that paper, parchment included, can draw oils and plasticizers out of unbaked clay over long contact and leave the finished piece brittle. For unbaked clay, Sculpey says plastic deli sheets let the clay keep its oils and plasticizers. It also suggests laying parchment over a seam to burnish it.
Glue on parchment
No glue maker we read names parchment or wax paper as a surface its glue won’t stick to. For hot glue drips, Surebonder’s own pads are silicone; see what hot glue won’t stick to. We’d test any glue on a scrap of parchment before trusting it as a release.
Reynolds says never to let parchment touch an open flame or the sides of the oven, not to use it under a broiler or in a toaster oven, and to preheat the oven first.