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Professional Evaluation Data Interpretation: Tonneau/Flat Cover Specialized PVC-Coated Polyester Waterproof Fabric

This product utilizes a 100% polyester high-strength base fabric combined with a double-sided PVC coating process, specifically designed for pickup truck beds and trailer flat covers. It features high strength, UV resistance, and weather resistance. The PVC coating process directly impacts mechanical properties—research indicates that using low-viscosity PVC resin can increase peel strength by approximately 29% and tear strength by about 11%.
Professional testing data indicates that high-performance tonneau fabric typically weighs between 500-900g/㎡, with a breaking strength of ≥2500N/5cm in warp/weft directions, tear resistance ≥250N, peel strength ≥100N/5cm, and the ability to withstand high-speed wind pressure and repeated folding stress. The material maintains durability across a temperature range of -30°C to +70°C, featuring waterproof, UV-resistant, and mildew-proof properties, making it suitable for all-weather outdoor use.

Tonneau/Pickup Flat Cover PVC Coated Polyester Waterproof Cloth Selection Guide

1. Weight and strength matching
Tonneau cover fabric needs to withstand high-speed wind pressure and repeated opening and closing. It is recommended to select according to the strength of use:
Mild/seasonal use: 500-650gsm, approximately 15-19oz/yd ², suitable for occasional short trips or household use
Standard/Daily Use: 650-900gsm, approximately 19-27oz/yd ², suitable for daily freight or regular pickup trucks
Heavy/long-distance transportation: 900-1200gsm, approximately 27-36oz/yd ², suitable for heavy-duty transportation of steel, equipment, etc
Products below 500gsm have weak wind and tear resistance, and are prone to damage during high-speed driving.
2. Base fabric and mechanical performance verification
Require 1000D × 1000D high-density polyester base fabric, with a recommended tensile strength of ≥ 2500N/5cm in the warp/weft direction and a tear strength of ≥ 300N. At the same time, verify the peel strength of ≥ 100N/5cm (DIN 53357) to ensure that the PVC coating does not separate during repeated folding.
3. Weather resistance and waterproofing
Verify that the hydrostatic pressure is ≥ 3000mmH ₂ O to ensure no leakage in rainstorm. The temperature resistance range is required to cover -30 ℃ to+70 ℃, and it should be treated with anti ultraviolet radiation (QUV 1000-2000 hours) to ensure long-term exposure to sunlight without brittleness or fading. Pay attention to checking the edge heat sealing and metal buckle reinforcement of the finished cover cloth.

Q: Will the fabric of this Tonneau cover shake or even be lifted up by the wind when driving on the highway?
A: The key depends on the fabric, base fabric, and weight. High quality Tonneau fabric is made of 1000D × 1000D high-density polyester base fabric, combined with double-sided PVC coating, with a tensile strength of over 2500N/5cm, a tear strength of ≥ 250N, and guaranteed wind resistance. A user tested the car and ran it for several months, feeling that it was "more durable than expected with a soft top, and the long-distance travel goods remained dry and comfortable". Some users also mentioned the need to "pull very tightly to prevent the wind from making a rattling sound at high speeds", and it is recommended to use a tightening strap or tensioner during installation.
Q: Is waterproof reliable in rainstorm days? Will high-speed rain cause water seepage?
A: A reliable product can achieve no leakage. Many users reported that the container was "always dry without water seepage" in rainstorm days. When making a purchase, check that the hydrostatic pressure is ≥ 3000mmH ₂ O, and also pay attention to the waterproof design of the edge heat sealing and buckle parts. A user tested and washed the car wash machine once, but surprisingly, not a single drop of water seeped in.
Q: Will the fabric become brittle or fade after prolonged exposure to sunlight and rain?
A: PVC coating itself has UV resistance and weather resistance properties. Some manufacturers claim a service life of 3-7 years. It is recommended to check the anti UV treatment (QUV 1000-2000 hours) and temperature resistance range (-30 ℃ to+70 ℃) when purchasing to ensure that it does not become brittle or crack after exposure to sunlight.

Company Backround:

Zhejiang Hanlong New Materials Co.,Ltd.

     Was established in 2016.It is a modern enterprise engaged in industrial fabric research and development,design,production,and sales.

     The company has introduced advanced coating and laminating production lines, -mainly producing PVC,PET,TPU,TPO,and other sandwich materials used in tents,membrane structures,airtightness,luggage,protection,medical,and other fields.

Contact us

Tel:0086 15958345754 

Email: Lex@zjhanlong.cn

Our Fcatory:Building B, No. 16 Huajin Road, Zhouwangmiao Town, Haining City, Jiaxing City, Zhejiang Province