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Polycarbonate Twinwall - Ice (Opal)
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Get Your Online Pricing: Tips for measuring & cut-to-size policy »
How To Measure and Cut-To-Size Policy | Close it

Cut-To-Size Items are Non-Returnable!

As per our Shipping and Returns Policy, custom cuts and fabricated parts are non-returnable. If you need an over- or undersized item, note it under "Comments" during Checkout. Cut-to-size orders have an acceptable cut tolerance of 1/8" (0.125"), so clarify if the adjustment is to be made on the (+) or (-) side of the saw blade. Please review our full return and shipping policy here.

Measure Twice, Cut Once

Since custom cuts and fabricated parts are non-refundable, be very careful while measuring your dimensions. As each cut is nominal, even the slightest miscalculation could be costly.

How to Use a Measuring Tape

1.) Extend your tape measure several inches to find the 1 and 2 inch markers. In between the inch markers you’ll find 16 equally spaced tick marks.
2.) Measure your space by counting the increments beyond the nearest inch. (If your space measures 7 inches plus 8 tick marks, that is 8/16 à 1/2. Your space is 7-1/2" on one side.)
3.) Another example: If your space is 7 inches and 9 marks past that, your material should be 7-9/16".

Features of a Measuring Tape: Sliding End Hook

The sliding end hook is designed for two different types of measurements. An outside measurement (where the hook of the tape hangs over an edge), requires the hook to slide out a bit to account for the thickness of the material. When making an inside measurement (where the hook will push up against a surface), the clip slides in, again, accounting for its thickness. The measuring tape self-adjusts to guarantee an accurate measurement (as far as the tape is concerned).


Total Price: $74.88


Overview Specs & Uses Reviews Inquiry
POLIE__SW - Overview

Polycarbonate twinwall is designed for an endless range of glazing and roofing applications, for extreme weather conditions, and is known for its light-transmitting and reflective qualities. They are attractive, durable, easy to install, and protect the people and property inside a structure from the elements and from damaging UV radiation. Perfect for hurricane roof and window protection, greenhouses, and architectural roofing, windows, and installations.

Note: We recommend only using Interstate Plastics' Aluminum Vent Tape with twinwall and mult-wall polycarbonate. 6mm (.236") and 8mm (.315") wall should be used with 1"x150’ tape. 10mm (.394") and 16mm (.630) wall should be used with 1.5"x150’ tape.

[Twinwall Installation Guide PDF]

In good architectural planning elements of the environment in which the structure will be placed must be taken into account. In outstanding architectural planning, the environment becomes an integral part of the structure.

Twinwall Polycarbonate sheeting harnesses nature to create the interior atmosphere by enlisting nature’s qualities for the creative process. Realizing that the creative process in building depends on the ability to adapt the materials for the design concept, Polycarbonate Twinwall offers architects a raw material that is like putty in their hands – almost any idea, however crazy it may be, can be implemented.

How to Clean Polycarbonate Sheet

General Cleaning
1. Rinse surface with warm water to loosen preexisting dust, dirt and grime.
2. Gently wash surface with a mild soap and a soft microfiber cloth or sponge.
3. Rinse thoroughly with lukewarm water. Dry completely with a soft, dry cloth.

Removing Oil and Tar
1. Rinse with warm water to loosen preexisting dust, dirt and grime.
2. Gently rub surface with a 50/50 isopropyl alcohol and water mixture using a soft, non-abrasive cloth.
3. Immediately rinse material with water and dry using a soft, dry cloth.

Removing Heavy Markings (e.g. graffiti, paint, marker, inks, glazing components)
1. Rinse with warm water to loosen preexisting dust, dirt and grime.
2. Gently rub surface with Naphtha VM&P grade, isopropyl Alcohol, or butyl cellosolve, using a soft, non-abrasive cloth.

Removing Adhesive-Backed Labels
1. Stubborn adhesives can be removed using isopropyl alcohol, Naphtha VM&P grade or kerosene.

Removing Scratches
1. Deep scratches and gouges made by sharp objects such as keys, screwdrivers and knives cannot be repaired.
2. Fine scratches can be cosmetically hidden by using our Novus 2, followed by a polishing agent such as Novus 1.

Special Note: Always rinse edges of polycarbonate with generous amounts of warm water, as the edges of polycarbonate sheet are not protected with an abrasion and chemical resistance hard coating.


  • Highly Flexible, Virtually Unbreakable
  • Extreme Durability & Impact Resistance
  • UV Protected from the Elements
  • Easy to Machine and Install
  • Lightweight: 1/6th the weight of glass and 1/3rd the weight of Acrylic
  • High Light Transmission
  • Multiple Colors Available
  • Flame Retardant
  • Transparent up to 2" thick with great light transmission
  • Wide temperature operating range (-40F to 280F)

  • Cutting can be done on a standard circular, jig, or table saw with a blade having 8-12 teeth per inch. Thinner gauges can be cut with a box knife.

  • Drilling is performed with standard wood drill bits.

  • Trim with a standard box cutting knife.

  • Bending is done by cold forming along the direction of the flutes. Bending guides are available.

  • Bonding ("gluing") can be done with Weld-On 55 adhesive.

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