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prismaguard logo Finished for Lasting Beauty
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Helping Homes Stand Out

Looking to increase the value and curb appeal of a home? Choosing a PrismaGuard Factory Finished Therma-Tru® entry door that complements a home's architecture could add up to 7% to the perceived value of a remodeled home.* Backed by a 10-year limited warranty, rigorous testing and exceptional craftsmanship, the PrismaGuard finish provides lasting beauty and peace of mind.

*See 2021 Therma-Tru National Valuation Study surveying real estate agents about perceived remodeled home value estimates based on exterior appearance. Not based on actual home sales data. Results may vary based on region, door style and home style. Study was commissioned by Therma-Tru and conducted by the Farnsworth Group, an independent research provider.

standard prismaguard stain colors
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Tumbleweed
on Fiber-Classic® Oak Grain
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Wildflower Honey
on Classic Craft® Fir Grain
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Rustic Clay
on Classic Craft® Mahogany Grain
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Barley
on Classic Craft® Mahogany Grain
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New Earth
on Classic Craft® Mahogany Grain
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Autumn Harvest
on Classic Craft® Mahogany Grain
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Mulberry
on Classic Craft® Mahogany Grain
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Driftwood
on Classic Craft® Fir Grain
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Raven
on Classic Craft® Mahogany Grain
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Acorn
on Classic Craft® Walnut Grain
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Alpine
on Classic Craft® Canvas
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Granite
on Classic Craft® Canvas
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Peregrine
on Smooth-Star®
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Onyx
on Smooth-Star®
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Obsidian
on Classic Craft® Canvas
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Indigo
on Classic Craft® Canvas
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Estuary
on Smooth-Star®
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Arctic Ice
on Smooth-Star®
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Cypress
on Classic Craft® Canvas
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Golden Wheat
on Classic Craft® Fir Grain
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Canyon
on Smooth-Star®
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Ruby Red
on Classic Craft® Canvas
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Cabernet
on Classic Craft® Canvas
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Chestnut
on Smooth-Star®
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Elk
on Smooth-Star®
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Limitless Color Choices logo
LIMITLESS COLOR CHOICES
Please provide the paint company name, paint color, and color # with your order.
standard paint colors
A Handcrafted Step-by-Step Process

Quality starts with the finish and, at Woodgrain, we strive every day to be the best at everything we do. Handcrafted and professionally applied in a controlled environment by certified craftsmen, a PrismaGuard finish is built to last.

Whether you want to bring the authentic look of wood to life with rich and dimensional stains, or deliver a pop of color with limitless paint options, a PrismaGuard Factory Finished entry door is guaranteed to make a beautiful, lasting impression.

  • Stain Process
  • Paint Process
  1. It starts with the realistic wood grains and deep embossments of a Therma-Tru door, composite door frame or door surround.
  2. A base coat provides an even, consistent color across the surface.
  3. A wiping stain enhances the base coat while adding dimension to reflect the natural beauty of wood.
  4. A durable topcoat enhances the high-definition color while protecting against scratches and color fading.
  5. A second application of the topcoat provides added durability and optimal sheen for a high-end look.
stain process
  1. It starts with the smooth or wood-grained surface of a Therma-Tru door, composite door frame or door surround.
  2. A base coat provides an even, consistent color across the surface.
  3. A durable topcoat enhances the high-definition color while protecting against scratches and color fading.
  4. A second application of the topcoat provides added durability and optimal sheen for a high-end look.
Tested to Meet Tough Expectations

PrismaGuard premium finish is put through multiple rigorous tests in Therma-Tru’s engineering labs. This helps ensure that PrismaGuard finish is built to last, just like the Therma-Tru doors it was designed for.

lasting1
Lasting Beauty and Color
lasting2
Resistance Against Wear and Tear
lasting3
Protection from the Elements
lasting4
Confidence
on the Coast
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Lasting Beauty and Color Go Back

Therma-Tru uses specialized testing equipment on PrismaGuard stains and paints to help deliver a consistent high-end appearance perfect for wood-grained or smooth door surfaces.

The specular gloss test (AST D0523) measures the reflection of light off the finish at an exact angle to help ensure the finished door's lawless appearance and added dimension.

The color difference test (STM E1347, ATM E308, ASTM D2244) establishes color standards for comparison to help verify that the finish preserves the door's color over time.

The viscosity measurement test (ASTM D4212) measures the finish to a controlled thickness that allows for even application of the handcrafted finish by the professionals who perfect it.

Resistance Against Wear and Tear Go Back

Therma-Tru subjects PrismaGuard finish to simulated everyday use to provide a durable high-end, low-maintenance finish that protects the door from normal wear and tear.

The tape adhesion test (AST D3359) applies pressure sensitive tape to the finished surface and pulls it away to help verify the finish will not peel or rub off the door.

The conical mandrel bend test (ASTM D522) bends the finished surface around a controlled spinning object to help confirm its flexibility to resist cracking and surface damage.

The abrasion resistance test (ASTM D4060) rubs the finished surface against a weighted abrasive wheel to help ensure that. the finish can resist scraping from normal use.

The pencil hardness test (STM D3363, ISO 1518-1) drags pencil leads of varying hardness across the finished surface at a specified angle to help confirm it can resist scratches.

The chemical resistance test (AAMA 605) exposes the finished surface to common chemicals to help ensure it can withstand the chemicals used in home construction and household cleaning.

The Gardner impact strength test (ASTM D2794) drops a specific weight on the finished surface from a set distance to help confirm that the finish can resist damage from impact.

Protection from the Elements Go Back

Therma-Tru simulates exposure to harsh environments to help verify that PrismaGuard finish coating protects the door from the elements, preserving its color for years to come.

The extreme weathering tests (AST D6695, AST C151, ASTM G154, ASTM G155) place finish samples in accelerated weather chambers that recreate cycles of intense sunlight, humidity, heat and water spray to help ensure that the finish can resist color fading and other defects caused bv exposure to the clements over time.

The 100% relative humidity test (STM D2247) exposes finish samples to high-moisture conditions to help ensure the finished door can resist damage due to high humidity.

The water immersion test (AST D870) immerses finish samples in water at elevated temperatures to help confirm that the finished door can withstand prolonged exposure to water.

Confidence
on the Coast
Go Back

Therma-Tru simulates a highly corrosive atmosphere to help ensure PrismaGuard finish can withstand the damaging effects of high-salt environments near the coast.

The salt fog immersion test (ASTM BI17) immerses finish samples in a simulated saltwater fog to help verify that the finished door resists damage from exposure.

Beautiful Finish Backed by an Industry-Best Warranty

Low-maintenance PrismaGuard finish preserves the door’s lasting beauty and protects against normal wear and tear—saving both time and money. A durable coating protects the door from the elements, preserving its color for years to come and is backed by a 10-year limited finish warranty for peace of mind.

In addition, Classic Craft premium entryways with a PrismaGuard finish are backed by a transferable 10-year limited finish warranty.

Boost Your Sales with Marketing Tools

Woodgrain makes it easy for you to increase your product knowledge with essential sales and marketing tools you need to sell Therma-Tru PrismaGuard Factory Finished entry doors.

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