Wood Finishing Academy - Cracking

Duration - 2:7

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  <begin subtitles> 00:00:12:13 00:00:13:11 Cracking. 00:00:13:12 00:00:15:00 Let's talk about cracking. 00:00:15:01 00:00:16:24 Why did my new finish 00:00:17:00 00:00:18:19 start to present some cracking? 00:00:20:21 00:00:22:08 There's a few possible causes 00:00:24:10 00:00:26:21 that we applied to which finish 00:00:26:22 00:00:28:23 was the material past its 00:00:28:24 00:00:30:00 usable pot life. 00:00:32:04 00:00:33:16 Incorrect catalyzation, Maybe? 00:00:36:02 00:00:37:15 Did the product start cross leaking 00:00:37:16 00:00:38:15 too soon? 00:00:39:09 00:00:40:17 A few solutions to this. 00:00:42:23 00:00:44:19 Always check your product 00:00:44:20 00:00:46:10 data sheet for the wet film 00:00:46:11 00:00:47:18 thickness. 00:00:47:19 00:00:49:07 Know how much product you need to 00:00:49:08 00:00:50:22 put on on the substrate. 00:00:52:17 00:00:54:14 Too much product 00:00:54:15 00:00:55:14 could cause cracking 00:00:57:05 00:00:59:03 material that's used to 00:00:59:04 00:01:01:07 use past it's pot life. 00:01:01:08 00:01:02:04 What is pot life? 00:01:02:05 00:01:04:12 First of all, pot life 00:01:04:13 00:01:06:12 starts at the beginning 00:01:06:13 00:01:08:06 when you first catalyze that 00:01:08:07 00:01:09:07 material. 00:01:10:10 00:01:12:20 Check your product data page. 00:01:12:21 00:01:14:09 Make sure you understand how long 00:01:14:10 00:01:16:07 that product is good for. 00:01:16:08 00:01:18:11 Incorrect catalyst or 00:01:18:12 00:01:19:12 catalyzation. 00:01:21:05 00:01:21:25 Couple of things there. 00:01:22:00 00:01:23:05 Make sure you're using the correct 00:01:23:06 00:01:24:05 catalyst 00:01:25:05 00:01:27:11 and then do not over catalyzed. 00:01:27:12 00:01:29:10 Too much catalyst will 00:01:29:11 00:01:30:10 also cause cracking 00:01:32:20 00:01:34:09 cross-linking too early. 00:01:34:10 00:01:36:19 Well, we see that typically in 00:01:36:20 00:01:39:00 a in line heater 00:01:39:01 00:01:40:03 on automated lines. 00:01:40:04 00:01:41:03 Most of the time 00:01:42:07 00:01:43:25 if the product is going through a in 00:01:43:26 00:01:46:06 line heater and then to 00:01:46:07 00:01:48:23 and then to a application 00:01:48:24 00:01:49:24 gun. 00:01:50:10 00:01:52:15 Maybe that inline heater 00:01:52:16 00:01:54:07 is cranked up to high, maybe it's 00:01:54:08 00:01:55:20 produced producing too much heat. 00:01:57:03 00:01:58:20 These are a few possible causes of 00:01:58:21 00:02:01:05 cracking and a few solutions 00:02:01:06 00:02:02:05 to follow. <end subtitles>

Watch Tech Services Manager Todd Steiner as he talks about the main reasons you are seeing cracking in your finishing operations and how you can prevent it from happening in the future.