Q: Can I buy Coroplast® sheets directly from you?

We do not sell our products directly to individual consumers. To locate a distributor, click here for a list of Coroplast® authorized distributors. If you are interested in becoming a distributor of Coroplast®, please click here.

Q: Is it possible to bond or glue two pieces of Coroplast® together?

Polypropylene is great for many uses due to the fact that it is resistant to chemicals; unfortunately the same properties make it difficult to bond using chemical bonding agents. However, several products have been developed by companies, such as 3M, that are designed to bond polypropylene structurally. Coroplast® has not tested these products. 3M’s Scotch-Weld™ Structural Plastic Adhesive DP-8005 is available from Grainger and other distributors for industrial use.

Heat welding or sonic welding with proper tools is an excellent method to bond two sheets of Coroplast®.

Q: Is it possible to paint on Coroplast®?

Krylon Fusion® Spray Paint for Plastics will provide a thin durable layer. Follow the manufactures directions for application of the spray paint. Brushes and rollers are not recommended for direct application of paints to Coroplast® because the paint layer is too thick and can easily peel and delaminate. For art projects you may use brushed application of compatible paints on top of the primer or base layer of the Krylon Fusion® Spray Paint for Plastics.

Heat welding or sonic welding with proper tools is an excellent method to bond two sheets of Coroplast®.

Q: What type of ink can be used on Coroplast® sheets?

Inks, such as solvent-based inks, water-based inks, UV inks, lettering enamels, etc. can be used on Coroplast®.  Since the ink selection is related to the printing process, consultation with ink suppliers is highly recommended.

Q: Is Coroplast® recyclable?

Yes, in most cases, standard Coroplast® sheets are 100% recyclable and we encourage Coroplast® sheets to be recycled.  Due to the durability of Coroplast®, it can often be reused. If the product is no longer usable we recommend removing any non-polypropylene accessories if applicable and recycling. Polypropylene is coded 5 by the Society of the Plastics Industry. Some common uses for recycled Coroplast® include automobile battery cases, signal lights, battery cables, brooms, brushes, ice scrapers, oil funnels, bicycle racks, rakes, bins, pallets, sheeting and trays.

Q: How long will Coroplast® sheets last outdoors?

Plastic material degrades outdoors and becomes brittle and cracks due to the UV rays in the sunlight. The length of life is related to local weather and varies in direct geographical locations. Regular white Coroplast® sheets of 4mm was tested according to SAE J1960 and did not become brittle after 2,500 hours, which corresponded to one year out exposure in Miami, FL.

Q: Will mildew grow on Coroplast® sheets?

Well packed Coroplast® sheets stored in a regular environment generally do not grow mildew.

Q: How long will the surface treatments (dyne level) of Coroplast® last?

It is true that the surface treatment of Coroplast® decays gradually but the speed is slow.  The duration of surface treatment is also related to the storage of Coroplast® sheets.  Grease, water, dust, direct sunlight, etc. on the surface of Coroplast® may reduce and expedite the decay the treatment level.  It has been observed that well-packed Coroplast® sheets, which have been stored in a warehouse without direct sunlight for six months, can be printed or glued with no issues.

NOTE: We believe the information contained in this FAQ is correct and to the best of our knowledge. The recommendations and suggestions contained herein are made without guarantee or representation as to the results. We recommend that adequate tests be made in the customer’s laboratory or plant to determine if this product meets all of the customer’s requirements.