Comments on: Plaster Retarder https://blog.model-train-help.com/2021/11/plaster-retarder.html?utm_source=rss&utm_medium=rss&utm_campaign=plaster-retarder Model railroads and model trains Thu, 25 Nov 2021 05:35:53 +0000 hourly 1 https://wordpress.org/?v=6.9.4 By: David Stokes https://blog.model-train-help.com/2021/11/plaster-retarder.html#comment-55507 Thu, 25 Nov 2021 05:35:53 +0000 http://blog.model-train-help.com/?p=6309#comment-55507 Make smaller batches. Plaster is designed to set in a given time frame. To slow hardening will weaken the plaster.

]]> By: Frank Miles https://blog.model-train-help.com/2021/11/plaster-retarder.html#comment-55502 Thu, 25 Nov 2021 05:03:45 +0000 http://blog.model-train-help.com/?p=6309#comment-55502 I use casting plaster and I use a fine serve. When I mix it I also put in a few drops of fish washing liquid. This appears to give me more time to apply it. If the mix starts to harden I add a bit more water, it softens then I can finish using all the mix. Hope this was helpful.

]]> By: Joe Lovell https://blog.model-train-help.com/2021/11/plaster-retarder.html#comment-55468 Wed, 24 Nov 2021 01:32:11 +0000 http://blog.model-train-help.com/?p=6309#comment-55468 Hi Ed
Hopefully this helps you, I myself use drywall joint compound powder mixed with water, it comes in bags of 20min to 90min set time can be found in home improvement stores it’s good stuff and it doesn’t Crack. Good luck, Joe

]]> By: Dale https://blog.model-train-help.com/2021/11/plaster-retarder.html#comment-55461 Tue, 23 Nov 2021 17:25:35 +0000 http://blog.model-train-help.com/?p=6309#comment-55461 Not much, really. If you are not able to complete the work in the 20-25 minute (typical) set-up time, perhaps you should work in smaller areas. A looser mix of Hydrocal will take longer but will be harder to work with unless you’re just filling a mold.

A small amount of time can be gained by working is a cooler environment as heat will tend to dry things faster.

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