Two ways of joining automotive carpet - car upholstery

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In car upholstery we find two types of automotive carpet. The first is the one called heat-molded carpet. It has a kind of rubber on its reverse side. This carpet can be shaped to a car floor by using heat between two dies (male and female). It can also be molded by hand by using a heat gun and applying heat over.
The most regular automotive carpet the car trimmers use is the one called 'trim carpet'. This carpet is very difficult to stretch if using some heat as an option.
This carpet would be shaped to a car floor by doing some cuts and sewing the cut edges. Some floor mats are also added over as protection and decorative to the big carpet under.
This basic video shows two ways of joining cut edges of an automotive carpet.
As we can see the first way is cutting off the excess, adding the seam allowance (10mm) and sewing it down.
The second way is done by hand sewing. No seam allowance is added. The cut is precise and consists in interlacing a thread over the synthetic/jute latex backing and through the pile.
To add strength a strip (3 cm wide approx.) of celestra is glued down to the sewn carpet edges.
It is important to take in mind these tips to be ready for a next video where I will show how a car carpet is installed following a technique from old upholstery school.

I hope you find this information useful!

Cesar

Видео Two ways of joining automotive carpet - car upholstery канала Cechaflo