You can stick masking tape on each side of the joint leaving enough for a bead of silicone. Then slap it on smooth off and take the tape off. Finally wet your finger and lightly run it along the bead. Job done!
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Exactly the way I do it
Some builders I know use some fairy liquid on their fingers, it is defiantly messy stuff
Ate a full soreen loaf today, oh my god I've more wind than a hurricane building up inside :(
Fags.sealing up is easy
Getting stuck in roadworks for 45 minutes on way home really pissed me off.
The universal cut and solder lambda sensor didn't do a decent job and still gave codes so just spent £44 on a straight fit one, £44 was with 11% discount too :(