COA: 77.77 GBp
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Casa • Industry FAQs • Why is the zip tape and reinforced area splitting when the customer fits the convertible top?

Check the needle size used to insert the zip is not too large. If a large needle is used for back tacking the bottom of the zip, this can split the reinforcement. Check that the load to assemble / close when under any pressure is not too high. The end of the zip and force on the zip during closure should not exceed 5 kg for normal applications.