Best Tool to Rake Out a Joint

[DIYWell]

I've a vertical crack where a porch joins the house. I'm happy there's nothing untoward causing the crack so want to rack out some of the mortal and repoint.

Question is what tool is best for raking out in a corner? Angle grinder seens too messy and difficult to control. A TCT Mortar Raking Chisel (18218) perhaps?

 

[^woody^]

Bolster chisel. That mortar will fall out

And use polysulphide mastic to repoint, not mortar

 

[DIYWell]

Are you suggesting the mastic because because you suspect there may be future movement or should it have been used initially?

 

[^woody^]

Yes to both.

 

[Joe Malone]

Personally I think you're making hard work for yourself. I'd simply Polysulphide over the crack

 

[^woody^]

But that would look a mess Joe. It's too uneven in this case

 

[theprinceofdarkness]

Don't use a bolster, you will shake the wall even more . Use one of these :- https://www.westfalia.net/shops/too...sels/1227607-habero_elektro_meissel_200mm.htm They are actually 6mm wide and brilliant!
Frank

 

[^woody^]

Don't use a bolster, you will shake the wall even more

You're joking. It only wants a little sharp tap and the mortar will fall out

 

[DIYWell]

Don't use a bolster, you will shake the wall even more

You're joking. It only wants a little sharp tap and the mortar will fall out

And I can confirm that a little sharp tap did indeed knock the mortar out. I'm surprised quite how soft it is.

Now I just need to drag my weary bones to TP for a tube of polydooda.