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frequently asked questions
What are the advantages of glass over polycarbonate?
Please see the link below to see the specifications and differences between polycarbonate as compared to glass.
How is visibility/distortion?
We use only the highest-quality optical-grade polycarbonate, ensuring exceptional clarity and strength. Combined with our proprietary forming process, our windows are crafted to be distortion-free, providing crystal-clear visibility in all conditions.
Key Features:
- Distortion-Free Clarity: Our advanced forming capabilities guarantee that our windows remain optically clear, with no distortion, ensuring an uncompromised view.
- Coating: This industry-leading coating protects against yellowing, hazing, and scratching, offering a long-lasting, clear field of vision even in the harshest environments.
Our commitment to quality ensures a durable and reliable product that meets the demands of heavy-duty applications.
What adhesive do I use?
We recommend either a double-sided UHB window tape or U-428 urethane window adhesive primer or primerless. We have had really good success with with double sided window tape over the adhesive and that is our main recommendation. We sell both options on our website with each door that requires it as an option.
Once there is a scratch, is there anything they can apply to get it buffed out?
Very light scratches can be filled with Novus wax, but due to the nature of silicone and polycarbonate, the coating cannot be re-worked.
What is the lead time?
We pride ourselves in keeping 98% of products in stock. If an item isn't in stock, the lead time will be noted on that products page. In stock items typically ship out the same business day if the order is placed by 3 p.m. Eastern time. A few items ship within 1-2 business days. If you need a specific lead time, please contact our office and we can advise you what lead times are.
Will it break or shatter?
No, when facing standard hazards or used appropriately our windows will not break or shatter. This means proper fastener tightening and following all chemical compatibility guidelines.
Is this bulletproof?
No. Bulletproof products have polycarbonate within their lamination. However, our retail products are not laminate, they are monolithic (meaning one solid piece of Lexan); therefore, not bulletproof. These windshields and windows are Effectively Unbreakable – 260X stronger than glass thickness to thickness. We are here to provide true information to educate you and keep you safe on the job. Each ½” thick window is the safest option and if you have questions about thicknesses please give us a call.
How long before it will scratch or haze?
This answer varies and is dependent upon the use of our skid steer products. Please refer to our limited warranty for more information. We are proud of our SHIELDS® SUPERCOAT™ and if you take care of it, it will perform for you.
What kind of warranty do you offer?
Yes, we have a limited warranty covering the SHIELDS® SUPERCOAT™ coating. Please contact us for more information about our skid steer doors.
Will the wipers scratch the product?
Yes, your wipers are completely safe to use on our windshields. Our windshields are designed to withstand demanding conditions and are treated with a silicone hard coating after they are formed, ensuring exceptional durability and performance.
Key Features of the Coating:
- Scratch Resistance: The silicone hard coating provides superior scratch resistance, even against abrasive materials like steel wool, ensuring your windshield remains clear and functional over time.
- Enhanced Durability: This post-formed coating process ensures the polycarbonate maintains its high impact resistance while gaining additional surface protection.
Recommended Wiper Maintenance:
To maximize the lifespan of your windshield and maintain optimal visibility, we recommend regularly inspecting and maintaining your wipers:
- Check for Debris: Before using your wipers, inspect the blades for any rocks, sticks, or debris that could scratch the windshield surface.
- Clean the Blades: Use a damp cloth or washer fluid to clean the wiper blades, removing dirt or grit that may have accumulated.
By keeping your wipers clean and free of debris, you’ll ensure safe, scratch-free operation and maintain the windshield’s superior optical clarity.
What do I clean it with?
When you receive your windshield there will be a care sheet will all of our instructions. Here is a copy of our care guide below:
What ASTMD standards does our polycarbonate adhere to?
Polycarbonate Testing and Standards
At Forestry Doors, we are committed to offering high-quality polycarbonate products engineered for strength, durability, and performance. Below are the results of testing conducted on polycarbonate materials, as well as information on the standards we adhere to:
ASTM D3763: High-Speed Puncture Properties of Plastics
Testing was conducted to measure the high-speed puncture resistance of polycarbonate. Results at 23°C are as follows:
- 118 mil (3mm): ~49 ft-lbs (67 Joules)
- 236 mil (6mm): ~108 ft-lbs (147 Joules)
The 1/2" thickness surpasses the above results, demonstrating even greater puncture resistance. However, due to the limitations of testing equipment, reliable data could not be obtained for 1/2" samples.
ASTM D3935: Standard Specification for Polycarbonate (PC) Unfilled and Reinforced Material
Our polycarbonate meets the standards outlined in ASTM D3935. The specific material classification is 9034THO or 9034THOR, identified as PC0130B34720.
Important Disclaimer
While we strive to provide accurate information regarding the properties and performance of our polycarbonate products, Forestry Doors is not liable for any results, outcomes, or use of these materials in any application. Testing standards are provided for reference purposes only, and product performance may vary depending on specific applications, conditions, and environments. Customers are responsible for ensuring the compatibility and safety of our products with their machines and intended use.