concrete hairline crack filler

[lange22]

Hi,
This is in the welding section, which is probably the wrong place. I am wondering if anyone has had any experience at filling hairline cracks that have appeared on a concrete slab. Mine was only laid in the last 12 months and this heatwave in the last couple of weeks have brought them out. They are less than 2 mm wide, but a bit of an eyesaw.
I was wondering if anyone has used a product that they can recommend, it would be good if there was something that was strong and matched the colour of the portland cement.

Thanks,
Darren

[Ian Smith]

Selleys Quickcrete is the stuff you need
My old 20 x20 garage had cracks hell, west, and bent. Some of them a couple of mil wide and this stuff has been down now over 6 months without any sign of re-cracking - Even painted over some of it

Ian

[TermiMonster]

I've seen epoxy used (2 part), mixed as liquid and poured in, though the cracks were wider than 2mm, I think.
Colour did not match, obviously.
I don't know where to get it either, so I'm probably not much help, but a search might turn up a supplier.
Another alternative might be ardit (sp?), or some such leveling compound. Would give a better colour match. Lanko is another brand.
cheers
TM