How To Whiten Upvc Window Frames

Arguably the most popular material for modern windows is unplasticised Poly-Vinyl-Chloride, or uPVC. Information technology'south robust, inexpensive, and lasts for years with minimal maintenance. To continue yours looking spotless, you only need give it the occasional wipe down with a clammy cloth.

Over time, yet, certain sorts of uPVC are decumbent to discolouration. Those bright white frames, if exposed to the elements for long enough, volition turn an unsightly shade of yellow. In this commodity, nosotros'll accept a look at the problem, why it happens, and see whether at that place's anything to be done once your uPVC has gone yellowish.

What Causes uPVC to Turn Yellow?

There are several things which tin can crusade uPVC to turn yellowish, just the likeliest culprit is exposure to UV light. Y'all might notice that your windows aren't and then yellow in places where the sunlight is restricted (your south-facing windows, for example, might exist most affected).

I of the major advantages of uPVC is that it's recyclable, and therefore environmentally friendly. Merely information technology'south for this reason that not all uPVC windows are created every bit. If your window has been made using extra plasticizing agents and pigments, then it might be more vulnerable to discolouration.

**How Not to Whiten Yellowed uPVC Windows**

Having identified the problem, we're left with the question of how to make yellow uPVC white again. You might be tempted by several common cleaners, some of which are to be avoided at all costs. Two offenders in particular stand out:

Bleach might seem a sensible choice for cleaning yellowed uPVC. It turns things white, doesn't it? Why shouldn't it do the same to your window frames?

Unfortunately, it's non that uncomplicated; bleach will react with the PVC and turn it a disastrous shade of brown. If you utilise information technology, fifty-fifty in diluted form, you can expect a total catastrophe that can only be fixed past replacing the unabridged window.

Sandpaper might also seem a sensible option. If the superlative layer is discoloured, then surely all we need to do is scrape information technology abroad to reveal the whiteness below. Again, this is a misunderstanding of how uPVC works – the topmost, sleeky surface is created as the plastic is manufactured – the interior of the textile is quite dissimilar. Information technology'southward irksome, and won't repel water or stains in the same mode. If you sand your uPVC window, you will ruin it.

How Do You lot Clean Xanthous uPVC Windows?

Depending on the nature of the staining, you might have some luck with more gentle cleaning solutions. Baby wipes have been known to elevator away some stains, and make a good first point of phone call if you accept access to them. Household cleaners like CiF should be regarded with some caution; be sure to cheque the bottle doesn't contain any bleach.

You can also find some peculiarly-formulated uPVC window cleaner on the market, which may restore new life to bilious windows. Even if yous don't experience stellar results, you tin can at least be sure that y'all aren't going to practice any impairment!

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Source: https://www.windowsonlineuk.co.uk/blog/whiten-yellowed-upvc-windows/

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