you mix a flexi rapid set (grey) with a flexi standard set (white)? both the same brand,Ultra, I've got a small floor to do for my niece and it'll take two bags of addy. I can get two bags of the same, no problem, I just like to use adhesive up if I can. I've often wondered what would happen if you mixed the two but I've never tried it. Has anyone else?

Have done something similar, mixed a bit of standard set into a rapid mix to increase working time, about 75% rapid / 25% standard, same make addys, this was summer time this year, very hot and the addy was setting as fast as you were mixing it

No problems reported........... yet

Originally Posted by doug boardley

you mix a flexi rapid set (grey) with a flexi standard set (white)? both the same brand,Ultra, I've got a small floor to do for my niece and it'll take two bags of addy. I can get two bags of the same, no problem, I just like to use adhesive up if I can. I've often wondered what would happen if you mixed the two but I've never tried it. Has anyone else?

Doug

Why not give the relevant tech line a ring?

tel

it can very Doug with manufacturer some don't make much difference some will slow it down Feb used to send it off like s**t to a blanket used to use it for screeds down prior to leveling never liked ultra

Hi Doug,

Some of the guys I know on a US forum have told me they do this stuff all the time with no problems. I think the textbook answer from the Tech line at any manufacturer is going to be "don't do it".

I did learn at a trade class I took once long ago that there are something like 10,000 polymers out there on the market for the chemistry geeks to use when formulating mixes for cements and additives. Who knows what the mix will do that you might make?

Originally Posted by Terry Cottar

Doug

Why not give the relevant tech line a ring?

tel

that'd be too easy Tel, plus you'd probably get the company policy of saying don't do it (so you have to buy some more). As I say, I'm not bothered about buying more addy, it was just one of those sunday morning thoughts that I thought I'd share with the guys

doug, when I did my hallway floor, I had half a bag of rapid set left over from the kitchen job and I bought a full bag of standard set as I knew I would need more than 1 bag but 2 bags might have been too much. Didn't mix them together though, sorry.

have mixed benfer c2 white std set into benferflex rapido spf white at 50/50 to give a longer open time and had no probs

Ive mixed Bal spf with rapidset and it was great, i mixed up a gorrila tub full of the stuff and it work fantastic.

I don't know what would happen, but I imagine there are different "ingredients" in them (Obviously, because they are a different colour ) so I don't think I would mix them

Edit: Missed the bit about one being rapid, one standard. I imagine they would have some type of reaction.

ive mixed grey and white , theres no way im throwing half bags away at the end of of a job

Originally Posted by stevee

ive mixed grey and white , theres no way im throwing half bags away at the end of of a job

I've no qualms about ditching half bags really, I guess I'm intrigued about the chemical reaction that may take place, ie would the resultant mix be as rapid setting as rapid set, or slow setting like standard set, or a half rapid/standard set?

Originally Posted by doug boardley

I've no qualms about ditching half bags really, I guess I'm intrigued about the chemical reaction that may take place, ie would the resultant mix be as rapid setting as rapid set, or slow setting like standard set, or a half rapid/standard set?

do an experiment doug

I've done it, long time ago though can't even remember what the adhesive was.

No problem though

Originally Posted by GirlRacerRed

do an experiment doug

I just retiled me outside loo floor a few weeks ago, I should have tried it then I suppose, ( but it only needed one bag of addy, which I had, so no need to cross mix)

[QUOTE=doug boardley;277313]I just retiled me outside loo floor a few weeks ago, I should have tried it then I suppose, ( but it only needed one bag of addy, which I had, so no need to cross mix)[/QUOTE]


Read that quick thought we was on another subject

Originally Posted by doug boardley

I guess I'm intrigued about the chemical reaction that may take place, ie would the resultant mix be as rapid setting as rapid set, or slow setting like standard set, or a half rapid/standard set?

What, you didn't read my reply, 2nd post it does prolong working time as I said, we were using a 75/25 mix and it would increase pot life by an hour or so

Originally Posted by Alan.P

What, you didn't read my reply, 2nd post it does prolong working time as I said, we were using a 75/25 mix and it would increase pot life by an hour or so

I read your reply Alan that's why I thanked you, but you mentioned it was a sweltering hot day, now I don't know what the temperature is like with you at the mo, but down here in lakeland the mercury isn't daring to climb out of it's bubble

ive only ever mixed jack daniels with diet coke. sorry

Originally Posted by aqua tiling

ive only ever mixed jack daniels with diet coke. sorry

Originally Posted by doug boardley

I read your reply Alan that's why I thanked you, but you mentioned it was a sweltering hot day, now I don't know what the temperature is like with you at the mo, but down here in lakeland the mercury isn't daring to climb out of it's bubble

I know mat, that's why I stuck my tongue out at ya down here at the moment, it's brass monkeys, rapid set is behaving like standard, example, I tiled a wc floor in 300 x 300mm polished porc one morning this week, went back to it on the night and the addy was still soft as clarts, couldn't get on it to grout until next day

guys, chemically the only difference in the two adhesives if the same manufacturer is the level of retarding agent slowing the set time down, most of the other properties ie; sand cement , filler, polymers are the same as.

Rufus

Mix one bag, use it then use the other. No worries then!

but I probably want to grout it same day Davy, I'll just get another bag of rapid for this job

Doug get yourself a shed and hold adhesive in stock would never have the problem again

you wont have any probs with it sticking them ive found that if you mix white and grey and you get a bit on your arm it burns a bit but its not a a@e burn

i would do the same as Davy and mix one bag and use it then the other one but would be reluctant to mix both for various reasons Doug....i sense you are onto something Dougy boy!

We do it alot with the bags the lads bring off site when they've finished, never had any problems with any of the brands we've mixed there all some form of cement.

Done the same myself sometimes if I'm running out of rapidset but have a bit of white slow set. Sets reasonably quickly in a rapidset heavy mix, and never had any problems, wouldn't hesitate to do it again.

Originally Posted by pjc

Doug get yourself a shed and hold adhesive in stock would never have the problem again

lol Pete, I did, but Mrs Doug sees it as a handy dumping place for everything else