Frederick Presti invented and patented the seamless retread envelope in 1975 and it’s still arguably the most widely used envelope in the world.
For over 35 years, Presti has been producing innovative products, which have set new performance standards for enveloping technology. Presti has been awarded 9 U.S. Patents.
In 2010, Presti Industries re-engineered the Presti envelope, making it easier to use, significantly lighter and more durable. We believe it is the most cost effective enveloping solution available.
Today, Bridgestone-Bandag®, Goodyear®, Marangoni® and Michelin® all use enveloping technology developed by Presti.
Presti's re-engineered envelopes are significantly lighter than the originals. We increased the elastic properties and made it easier to use without sacrificing durability. We also improved its thermal conductive properties decreasing the time to transfer heat during the curing process. We optimized our envelope sizing to deliver a superior fit while minimizing inventory requirements of different sizes.
All Presti envelopes come standard with our new QuickDraw® Valve at no additional cost.
All of Presti outside envelopes come standard with our QuickDraw® Valve and a Barcode Tag at no additional cost. The valve is engineered to deliver superior performance. The large 60mm diameter base has an integrated vacuum manifold and is cross drilled to deliver a QuickDraw when pulling a vacuum. The valve has a molded rubber grommet to protect the envelope. The top clamp washer is color-coded for easy identification and interlocks with the envelope which eliminates leaking and valve pull-through. The QuickDraw® Valve is available with industry standard male connections.
The Bandag valve is typically used with SureSeal / ARC+ Ring Systems and is 100% compatible with Bandag couplers. The integrated Bandag nipple eliminates the need to buy adapters saving the retreader time and money.
The SureSeal valve is typically used with double envelope systems (inner & outer) and is compatible with Michelin Couplers. The integrated SureSeal nipple eliminates the need to buy adapters saving the retreader time and money.
The G5 valve is the only valve in the market with an integrated fully gas permeable manifold. The G5 valve eliminates the need for poly, staples and cloth wicks. The ultra-thin manifold will not stick to any part of the casing, eliminates the need to buff the flow area and leaves a superior high quality finish on the tire. The G5 valve is available with industry standard male connections (Bandag, SureSeal or 482-26 Thread).
The Threaded Valve has a 482-26 thread and is 100% compatible with industry standard adapters.
SCOTT SANDEFUR,Broadway Motors
Presti is the best envelope with quality that exceeds all others and the only envelope available today that I will consider for my production. Presti is the envelope I can count on to help me maintain my production and quality.
20 March 2017
Visit Us at North American Tire & Retread Expo! Stop by Presti Industries booth #627 to see some of our latest retreading product updates! Dates: Apr 19, 2017 – Apr 21, 2017 Location: New Orleans Morial Convention Center, New Orleans, LA
Presti Industries provides innovative enveloping solutions to the retreading industry. Please complete the form to receive additional information about Presti products. We look forward to hearing from you.