RCModelScout.

Hobby-Lobby

UltraCote Green

Temp ranges are as follows:, Adhesion to wood begins at 200 to 220 degrees F., Key Features:, High tech polyester covering, Temp ranges are as follows:, Adhesion to wood begins at 200 to 220 degrees F., Surface Preparation:, The covering job can only be as good as the finish of the surface it's applied over. In order for the covering to properly adhere to a surface, the surface must first be smooth and clean. Sand the model using a sanding block and progressively finer sandpaper, with the final sanding being done with 320 grit paper. Vacuum away all of the dust, as specks of dust under the covering will leave unsightly bumps. Fill gaps and dents with a high-quality filler. If using light-colored UltraCote (such as white or yellow), use a tan-colored filler that matches the wood color to prevent the filler from showing through., Trim Film to Size:, Start by covering the bottom of one wing half. Using scissors or sharp hobby knife, cut a piece of UltraCote a few inches larger than needed to cover the wing. Remove the backing (save for later) and place the covering with the adhesive (dull) side down, centered over the wing. Set the covering iron to the application temperature of 220�F., Tacking Covering to Spar:, Tack the covering to the spar or the high point of the wing, using your iron as shown (an iron sock is highly recommened). Gently pull the covering toward the root and toward the tip, as you work the iron from the center of the spar to the root and tip of the wing. Press gently with the iron, allowing the heat (not pressure) to activate the adhesive and bond the covering to the high point. Ideally, the covering will naturally lay flat against the entire surface with a minimum of wrinkles., Covering a Solid-Sheeted Wing:, If covering a solid-sheeted wing, work from the center of the spar outward to the trailing edge and then to the leading edge as shown, using the iron at 220�F. If a wrinkle develops, the covering can be carefully lifted and reapplied., Covering an Open-Structure Wing:, If covering an open-structure wing, ,

UltraCote Green
Hangar 9 UltraCote is a high tech polyester covering that features a unique multi temperature-controlled adhesive and shrinkage system, making it versatile and easy to apply. A patented polymerizing process permanently fuses the color to the polyester film covering, eliminating the possibilities of color-layer separation and permits repositioning the covering on your model. UltraCote's unique ability to both shrink and stretch make it superior to other coverings for going around tight curves and wingtips.
Shrinkage onset begins at 300 degrees F.
Maximum shrinkage is at 350 degrees F.
Unique multi temperature-controlled adhesive shrinkage system
Versatile and easy to apply
Patented polymerizing process permanently fuses the color to the polyester film covering, eliminating the possibilities of color-layer separation and permits repositioning of the covering on your model.
Light weight at .30 oz/sq. ft.
Fuel proof to glow fuel, gas, and smoke oil. Water proof as well.
Shrinkage onset begins at 300 degrees F.
Maximum shrinkage is at 350 degrees F.
Pro Tip - Some professional builders "raise the grain" then sand a second time with 320 or 400 grit paper for the ultimate finish. After the model is sanded, use a damp cloth to wipe down the model. Some modelers prefer to use a fine-mist squirt bottle filled with water to dampen the surfaces to be covered. As the surface dries, imbedded wood fibers in the surface will "stand up." When dry, sand the surfaces again using 320 or 400 grit paper. Raising the grain now and sanding it off will prevent the grain from raising later under the covering, creating a bumpy finish. Vacuum the model thoroughly and avoid touching the model with oily hands.Your model is now ready for covering!
Pro Tip - If the iron you're using does not display the actual temperature, here is a tip that will ensure your iron is properly set.Water boils at 212�F. Allow your iron to warm up at a medium setting. When the iron reaches its stabilized temperature, carefully pour a few drops of water on the iron's surface. Adjust the temperature until the water just begins to boil off. This method is surprisingly accurate and is generally within 10� (of the exact application temperature of 220).
Pro Tip - If sealing the covering in tight areas such as corners or fillets, using the Hangar 9 ProTrim Sealing Tool is very helpful and results in a professional finish.
Pro Tip - Use heat, not pressure, to shrink the covering taught. If pressure is applied, gouges can be pressed into the wood. Let heat, not pressure, do the work.
Pro Tip - Many professional builders mark this temperature on their covering iron with a marker or striping tape for quick reference, as this temperature is used frequently whenever putting on covering.
Shrink On-Set Temperature-300�F (134�C)
At 300�F, UltraCote begins to shrink. This is called the Shrink On-Set point. After the covering is attached using an iron set to 220�F, the next step is to shrink the covering. This initial shrinking is done with the iron set at 300�F.
Maximum Shrinkage Temperature-350�F (162�C)
At 350�F, UltraCote reaches its maximum shrinking point. Raising the temperature above this point will not cause further shrinkage.
The rate of shrinkage is not directly in proportion to the temperature. The chart to the right shows how the majority of the shrinkage rate occurs between 300�F and 330�F. At higher temperatures UltraCote continues to shrink but at a much slower rate. The smallest amount of shrinkage occurs between 340�F and 350�F. This is helpful to remember when shrinking and tightening covering.
Pro Tip - Always use the minimum heat necessary to remove wrinkles when tightening the covering, thus allowing plenty of shrinkage/temperature range remaining if it's necessary to further shrink the covering.

Found 11 years, 8 months ago