drying too fast - TilersForums.com

[benjiiiiuk]

hi. can i mix an adhesive a bit wetter as i am following the instructions but it is setting too fast,

cheers for any help

 

[doug boardley]

I alwys mix it to manufacturers instructions mate, are you using rapid set? if so, why not use a standard set instead to give you more working time. Or mix up smaller quantities at the appropriate mix ratios

 

[benjiiiiuk]

yes it was rapid set. i have done the job now but it was a pain i will consider that in the future. cheers

 

[united]

As Doug said above

I'm not the fastest tiler so I try to use something with a longer pot life or mix small amounts

 

[White Room]

What adhesive was it

 

[DHTiling]

Mapei adhesives give a much longer pot life.. even rapid ones..

 

[CJ]

Run the tap for a few mins to get cooler. :chillpill:

Mix smaller amounts. :chillpill:

Dry cut as much as poss beforehand. :chillpill:

Keep everything in the shade. :chillpill:

 

[Ken Bruty]

You didn't say whether you were mixing it by hand or with power whisk. If you were using a whisk and were mixing it on too fast a setting, it generates friction in the adhesive, therefore heat, hence a very quick setting cement, perhaps try mixing at a slower speed or do it by hand with a bucket trowel, it will give you a longer working time.

 

[White Room]

Don't use Biscem fast set because it does rapidly:yikes:

 

[Thespanishtiler]

I cant understand the obsession with using rapid set so much, I would say that unless you want to grout or have access over on the same day or on stone with a high bleed porosity there is no need to use it.a good quality C2S1 white std set is all you need

 

[Perry]

I cant understand the obsession with using rapid set so much, I would say that unless you want to grout or have access over on the same day or on stone with a high bleed porosity there is no need to use it.a good quality C2S1 white std set is all you need

Unless its on timber where you need to use fast set

 

[Thespanishtiler]

Unless its on timber where you need to use fast set

direct to timber or timber subtrate prepared with board (cement or wedi generic) or crack isolation matting ?

 

[simmy08]

The rapid addy i like for floors is cheaper than other brands, thats why i use it.its made by a respectable company anyway but just labelled different. it also helps me to be more quick and i can grout it the same day. Less money out for materials and more money in for time saving.
Although i do believe in the right addy for the right job. Ill use a generally more expensive rapid addy with better slump properties for wall tiling. ill use a standard set addy for mosaics and other tiles for just that little bit longer working time. I always try to use rapid addy tho as it pressures me to work that bit quicker but still aiming for a spot on job.

as with setting too quickly i will mix smaller amounts always making sure to clean my bucket and tools out not using same water and always planning ahead as far as the job will allow.

 

[Thespanishtiler]

Hi simmy08

all fair points and it obviously works for you.
I feel sometimes there is an element of tilers bravado about using rapid set and a feeling that doing so makes you a 'pro tiler'
I only use cement based addy and 80% of the time it is a standard set C2S1
and i use it over prepared timber subtrates

 

[Perry]

direct to timber or timber subtrate prepared with board (cement or wedi generic) or crack isolation matting ?

direct to timber or timber substrate