Encaustic Care Guide

Encaustic Art Care Guide

Encaustic paintings are made with pigmented beeswax and damar resin, fused with heat. With basic precautions, they are stable and long-lasting. The following guidelines will help you protect and enjoy your piece for years to come.

Heat

Encaustic works can soften or warp when exposed to temperatures above approximately 140–150°F (60–65°C). In everyday indoor environments this is rarely a concern, but a few situations warrant attention:

  • Parked cars in summer – Interior car temperatures can exceed 160°F (71°C) on hot days. Do not leave encaustic artwork in a parked vehicle, even for short periods. If transporting a piece, keep it in an air-conditioned car and never place it in a trunk without climate control.
  • Heating vents and radiators – Keep work at least 2–3 feet away from direct heat sources such as baseboard heaters, radiators, or heating vents.
  • Fireplaces – Display pieces at a safe distance from open fires or wood stoves.

At normal room temperatures (60–80°F / 15–27°C), encaustic is stable and does not require any special climate control beyond what is comfortable for the household.

Direct Sunlight

Prolonged, intense direct sunlight can affect encaustic works in two ways: heat buildup and UV-related color shift.

  • Heat from sunlight – A south- or west-facing window that receives hours of direct sun can raise the surface temperature of a framed piece significantly. When possible, hang encaustic artwork away from windows that receive intense afternoon sun.
  • UV exposure – As with most art media, sustained UV exposure may cause gradual color change over time, particularly in works with organic pigments. Filtered or indirect light is preferable for long-term display.
  • Bright, indirect light – Encaustic surfaces often look their best in bright, indirect natural light or warm artificial light, which showcases the luminosity of the wax without risk.

Standard indoor lighting (LED or incandescent) is generally fine. If you have concerns about a specific display location, UV-filtering glazing is one option to consider when framing (see Framing section below).

Dusting and Cleaning

Encaustic surfaces can develop a slight haze over time, which is a natural characteristic of beeswax called bloom. This is easily addressed:

  • Buffing bloom – Gently buff the surface with a soft, lint-free cloth (such as a microfiber cloth or clean cotton flannel) using light circular motions. This restores the natural luster of the wax.
  • Dusting – Use a very soft, dry brush (such as a wide, soft-bristle paintbrush or camel hair brush) or a clean microfiber cloth to remove dust. Work gently to avoid scratching the surface.
  • What to avoid – Do not use water, household cleaners, solvents, or polishing sprays on encaustic surfaces. Avoid abrasive cloths or paper towels, which can scratch the wax.
  • Protective finish – Encaustic does not require a varnish or protective topcoat. The wax surface itself is the finish. Applying additional coatings is not recommended.

Framing and Glass

Encaustic paintings are typically displayed unframed or with a floater frame that does not cover the edges. There are a few considerations if you choose to frame under glass:

  • Keep glass off the surface – The wax surface should never be in direct contact with glass. The surface texture of encaustic can stick to glass, and condensation between glass and wax can cause damage. Use deep frames, spacers, or mats to maintain a gap of at least 1/4 inch (6 mm) between the glazing and the artwork.
  • UV-filtering glazing – If the piece will be displayed in a location with significant light exposure, UV-filtering glass or acrylic can offer additional protection against color shift.
  • Acrylic vs. glass glazing – Lightweight acrylic is a common choice for encaustic because it is lighter and less prone to breakage. Note that acrylic can develop a static charge that may attract dust; museum-grade anti-static acrylic is available if this is a concern.
  • Unframed display – Many encaustic works are displayed unframed, which allows the full texture and depth of the piece to be appreciated. The buffing and dusting guidelines above apply directly.

Shipping and Transporting

Encaustic works require thoughtful packaging to arrive safely.

  • Temperature during transit – The most significant shipping risk is heat. Avoid shipping during extreme heat, or via services that cannot guarantee climate-controlled transit. Summer shipments warrant extra care.
  • Do not leave in unventilated vehicles or cargo holds – These spaces can reach extreme temperatures. Hand-carry encaustic works when traveling by air whenever possible.
  • Protective wrapping – Wrap the surface with glassine or wax paper before any other material contacts the face of the artwork. Do not allow bubble wrap or foam to touch the wax surface directly, as texture transfer can occur.
  • Padding and boxing – Use adequate cushioning on all sides within a rigid outer box. Double-boxing provides the best protection against impact.
  • Orientation markings – Mark the outer package clearly with the correct orientation and fragile indicators.

If you have any questions about receiving or installing your piece, please don't hesitate to reach out.

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