Questions You Should Know about Render Retarder

Hi all, everyone is always asking about accelerator to prolong same day scrapes this time of year. But what about adding retarder to Mono so that it's more workable for next day scrapes?
It wouldn't matter when using Parex or other slow setters but Weber can be murder to scrape off next day unless it's absolutely freezing, in which case you probably shouldn't be applying it anyway.
Is there an equivalent of the wickes accelerator recommended by @Rigsby that is suitable for Mono even if it's not the official product?
Cheers Because as he said if it's to cold it's the wrong conditions anyway and if you get the timing right it should be fine.
I see the point in an accelerator to achieve same day scrape I don't see the point in a retarder.
I know ever build do a retarder for cement to answer the question so that could be used I assume.
There accelerator is pretty good, I use that when wickes are out of stock. The Retarder from Parex is not quite the retarder we think it is.

If you look it up on the Parex website it re***ds the 'open' time but not the initial set.

I have only used Weber without an accelerator in cold conditions where it is under 10c, late as in the afternoon and back there before sunrise to scrape back. The others are more forgiving for overnight. There's never retarder needed,
Tip 1, if it's new blockwork put a primer on to kill the suction.
Tip 2 if it's domestic,get them to leave the heating off overnight to stop any heat on the wall.
Tip 3 give the rendered wall a hose down with water before you leave site,just a gentle setting it will hold back the set, from fully skinning over for a while longer.
Works with pral m in my experience.
Or go the other way accelerate it for a same day even in December you get a good 6 hours of daylight. I always switch to Parex this time of year on my own jobs as I find it nice to scratch up next day but we do a bit of subbying and they give us weber all year round. There's not really enough money in the job to be using primers etc because I'd have to supply. Also it might get complicated with specs on the big sites and they might not let us use them, but out of interest which primer would you suggest?
I've tried wetting the walls down, and even on new properties with no heating on I just find weber a nightmare the next day.
I think adding a retarder would simply make weber a nicer render to use through winter, but I just need to find a suitable one.

Extratime Render Retarder is a chemical additive for use with sand and cement render. The additive slows the curing process of the render by slowing the chemical crystal formation that causes the it to set or harden. Extratime is recommended for moderate lengthening of sand and cement render setting times. Extratime Render Retarder will lengthen the setting time by around 60 minutes depending on the ambient temperature, relative humidity of the environment and the surface being rendered.

You will get efficient and thoughtful service from Honglai.

​

Extratime Render Retarder has been developed by a plasterer with over 20 years experience in the trade to  allow more time to complete larger areas. It is ideal for very large projects.

Contact us to discuss your requirements of Additives for EIFS. Our experienced sales team can help you identify the options that best suit your needs.

"After years of being under pressure when working on pebbledashing jobs I thought there must be some way of making the job easier.  I set out to develop something that was easy to use, inexpensive and provided a little more time - The result was Extratime Render Retarder"  M Shepherd, Founder, Eazymix Ltd.

Extratime Render Retarder is only suitable for sand and cement renders, it cannot be used with premixed Monocouche renders such as K-Rend etc. It helps make rendering easier especially when working on large areas. It simply takes the pressure off.