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Comparison of Different Shutter Materials
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High <---------------------------------------Quality---------------------------------------> Low
| EIP'S WEATHERBEST (Korad Acrylic Capped) | EIP'S WEATHERPRO (Weatherable Polymer) | MAXIMUM UV-INHIBITED PP | MAXIMUM UV-INHIBITED HIPS | NON-UV INHIBITED PP | NON-UV INHIBITED HIPS | |
|---|---|---|---|---|---|---|
| Long Term Color Stability | Outstanding | Very Good | Very Good | Fair | Very Poor | Very Poor |
| Long Term Material Stability | Outstanding | Excellent | Excellent | Fair | Excellent | Very Poor |
| Thermal Stability (Warping) | Outstanding | Outstanding | Good to Poor | Outstanding | Good to Poor | Outstanding |
| Impact Resistance | Excellent | Excellent | Outstanding | Excellent | Outstanding | Excellent |
| Scratch Resistance | Excellent | Good | Fair | Fair | Fair | Fair |
| Resistance to Cleaners | Excellent | Fair | Outstanding | Fair | Outstanding | Fair |
| Paintability | Excellent | Outstanding | Unpaintable | Outstanding | Unpaintable | Outstanding |
High <---------------------------------------Cost---------------------------------------> Low
The Long Term Color Stability of HIPS and PP is completely dependent on the amount of stabilizers added. (That is, it varies).
There is a wide range of shutters being sold between "maxmium-inhibited" and "non-inhibited" materials.
There is no way for the consumer to know the level of UV protection the product actually has.
Because UV ihnibitors are expensive, cost is usually a good indicator of the amount of inhibitor added.
PP cannot be painted. Paint will not bond to the surace of polypropylene. It will peel off like a rubber glove.
Non-UV Inhibited HIPS is sold as a paintable shutter. Once painted, the shutter is protected, and will last as long the shutter remains painted.
Korad Capped Shutters can always be recognized by the solid colored surface and a non-colored substrate.
