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Ask The Trades › DIY Forum › Building Questions › Plasticizer

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Plasticizer (Read 2233 times)

JohnD GDPR opt-out	Plasticizer Oct 27^th, 2010, 11:36pm I am going to be using small quantities of Plasticizer - the instructions are 5L per 100 kg - to mortar up my chimney. How does this relate to half a bucket of compo? Only want to mix up small amounts, not sure how much to add and don't want to get it wrong. Thanks John D
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woodsmith Global Moderator Trade Member Author Offline Posts: 4397 Total Thanks: 135 For This Post: 0 Gender: Trade: Joiner	Re: Plasticizer Reply #1 - Oct 31^st, 2010, 12:01pm That sounds like a lot of plasticizer, you would be putting in over a litre per 25kg bag of cement. Is it a wintermix plasticizer? You do put more of that in the mix. It only has to be approximate proportions, putting a lot too much in can weaken the mix, put too little in and it is not "plastic" enough.
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JohnD

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Re: Plasticizer
Reply #2 - Oct 31^st, 2010, 4:09pm

Its a winter plasticiser, and it is 5l per 100 - 120kg of cement - not mix. My apologies.

Have just sorted it out by weighing and measuring all ingredients - about 300 ml - 400 ml (300 ml is a small jamjar full) per 10 litres of dry mix (nearly a bucketfull) seems to go off well and makes a good strong job. Instructions are to double up for frosty conditions.

Thanks

John D

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