# Tough V4 resin and water **URL:** \ **Category:** Form 2\ **Created:** [June 9, 2017, 8:01am UTC](https://forum.formlabs.com/t/tough-v4-resin-and-water/13665 "2017-06-09T08:01:14Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![MicheleHY](https://avatars.discourse-cdn.com/v4/letter/m/eada6e/32.png) [@MicheleHY](https://forum.formlabs.com/u/MicheleHY)\ **Post date:** [June 9, 2017, 8:01am UTC](https://forum.formlabs.com/t/tough-v4-resin-and-water/13665/1 "2017-06-09T08:01:14Z")
Hi, I recently bought the tough V4 resin. After printing and post curing the pieces look like good, but when I put them in the water (are the pieces of a pump) after a short time the pieces lose strength and become soft. What can be the cause? How can I prevent it from happening? Thanks ---
**Author:** ![FredB](https://avatars.discourse-cdn.com/v4/letter/f/838e76/32.png) [@FredB](https://forum.formlabs.com/u/FredB)\ **Post date:** [June 19, 2017, 3:43pm UTC](https://forum.formlabs.com/t/tough-v4-resin-and-water/13665/2 "2017-06-19T15:43:32Z")
Is the water warm? Tough will become fairly flexible if you heat it up especially with thin cross sections. ---
**Author:** ![hoan123](https://avatars.discourse-cdn.com/v4/letter/h/6f9a4e/32.png) [@hoan123](https://forum.formlabs.com/u/hoan123)\ **Post date:** [June 23, 2017, 11:25am UTC](https://forum.formlabs.com/t/tough-v4-resin-and-water/13665/3 "2017-06-23T11:25:15Z")
cho tôi hỏi formlabs 2 có thể sử dụng loại resin cửa hàng khác một cách bình thường không ---
**Author:** ![system](https://us1.discourse-cdn.com/flex025/uploads/formlabs/original/3X/5/b/5bc2bdf993ff27c2e0eecab5010b25626fbb327a.png) [@system](https://forum.formlabs.com/u/system)\ **Post date:** [July 7, 2017, 11:25am UTC](https://forum.formlabs.com/t/tough-v4-resin-and-water/13665/4 "2017-07-07T11:25:18Z")
Closed on July 7, 2017, 11:25am UTC This topic was automatically closed 14 days after the last reply. New replies are no longer allowed.