Anthracite upvc cleaning advice needed Post questions and find answers on glazing, double glazing, upvc glazing, conservatory glazing, fixtures and fittings etc....

[Mark tomlinson]

Any advice please.

I have brand new anthracite windows and doors and on some I have splatters of white render.

My question is what can I use to loosen it and clean them in parts? On my white windows frames I’ve always used a solvent with no hassle but know this cannot be used on anthracite.