Cleaning Velcro straps

[faraway]

I have external silver screens which are used a lot. The Velcro straps and front label are quite green and grubby. Any advice on how to wash them please? Thanks

 

[Nanniemate]

fairy liquid or similar (liquid clothes wash /soap) and a soft brush rinse and repeat

 

[GMLS]

I've just cleaned mine with HG Mould Spray but try a small patch first.

 

[faraway]

Many thanks to you both.