Set in minutes

[Bert]

Hello to all,

I mixed some standard Bostik addy yesterday and it dried out within some 15 mins. and i am keen for any ideas why.

The adhesive was applied to bare external ply, the bucket had previously been used to mix fast set and i mixed the Bostik with a small amount Evostik which i understand is the same product under a different name.

The ply cannot be replaced as it forms part of a small platform with the shower base in place.

Regards.

 

[nybor62]

was it a new bag of addy . or was it old maybe shelf life was too old

 

[Bert]

was it a new bag of addy . or was it old maybe shelf life was too old

Hello, the bag was fresh I just didn't want to waste the small amount in the bag.

 

[Ajax123]

did it go off in the bucket or on the floor, was the ply primed?

 

[Bert]

did it go off in the bucket or on the floor, was the ply primed?

On the ply - what should I prime it with ??

 

[Diggy]

Mixing different addys is probably the cause.

Diggy :+)

 

[Dave]

When you say off , did it set hard or just skinned the over / dry touch on the surface.?

 

[Ajax123]

Dry ply sucked the water out of the addy I think...

 

[mma]

Mixed by hand or whisk/paddle? Prime with SBR/ Acrylic primer

 

[Bert]

When you say off , did it set hard or just skinned the over / dry touch on the surface.?

Set hard, unable to move any laid tiles.

 

[Bert]

Mixed by hand or whisk/paddle? Prime with SBR/ Acrylic primer

Hand mixed, never had problems before.
Is waterproof tanking primer suitable or am I heading in the wrong direction.