acrylic sealant

Can I use external frame sealant (acrylic) to fill gaps around an incoming MPDE blue mains cold water pipe and, separately, copper oil pipes and hep2o pipes? Any issues with material compatibility?

Flat roof is in need of some tender love, confused about all the different products. Have tried some before, esp the paint-on ones (Thompson, Acrypol,Cromapol), but not sure they are that effective, esp as they are only a thin layer of paint. Spotted a video about Watco Roofite, not in typical...

I fitted my current laminated kitchen worktop about 10 years ago and it went ok but I was never fully satisfied with the joints which I never got completely flat. I am just about to install a replacement laminated worktop and would just like a bit of advice to help me get good level and...