Staining & Finishing

Width of the overall glass unit is 1 3/8" top rating in energy efficiency.

Same-Day® stain

The finish is one of consumers’ top criteria when choosing a fiberglass door. With Same-Day stain, our products look great and you look even better. Developed specically for Therma-Tru® fiberglass systems, Same-Day stain dries 75% faster than conventional stains. Faster drying, faster installation, faster homeowner satisfaction. Same-Day stain can be layered to achieve virtually any desired shade, and prevents fading, bleaching and yellowing. Available in cans up to a gallon and in individual kits for a double-door system or an entryway with two sidelites.

Therma-Tru highly recommends use of Same-Day stain with its door systems. With the use of the stain, there is a 5-year product warranty and a 5-year satisfaction limited warranty. For complete details, visit

Note: Colors may vary from an actual application due to fluctuations in the printing process of this catalog.

Finishing your Fiberglass Door

Our quality finishes bring out the finest grain details of authentic oak to provide the genuine beauty of wood. But unlike wood, Ostaco’s fiberglass doors won’t peel or warp due to changing temperatures, (so the finish lasts three times longer). You also enjoy a five-year satisfaction warranty* on our finishes.

The Ostaco Finishing System features:

Features a colourfast finish that won’t • fade, bleach or yellow

  • Retains gloss and resists chalking
  • Offers a water-based, environmentally friendly topcoat
  • Comes in a wide variety of popular stain colours and can be
  • applied lighter or darker to match any decor
  • Features a five-year complete satisfaction warranty

Easy Maintenance

All exterior finishes are affected by continuous exposure to the sun, moisture and wind. We recommend re-applying the topcoat every three to five years, or when the gloss begins to fade.