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Spraying undercoating inside a sub box?

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=18081
Printed Date: May 23, 2024 at 5:11 AM


Topic: Spraying undercoating inside a sub box?

Posted By: fishing
Subject: Spraying undercoating inside a sub box?
Date Posted: August 25, 2003 at 10:11 PM

Would it be a good idea to spray the inside of my box that I'm building with a automotive undercoating/ sound deadning spray? How would this help or hurt?

Also, How about brushing on fiberglass reisen on MDF. Should I do the inside or outside of the box, or both?  How would this help or hurt?     I would think it would make it stronger?

What about polyfill? If my box was built to specs , is there a need for polyfill? What would happen if I added it?                   If the box I built ended up being slightly under specs then how much polyfill should I add? Say the box was under built by  .5 volume.

Last one: If I built a box just right "specs" for a sealed enclosure,  then wanted a ported box instead, could I add enough pollyfill to compensate for the volume needed in a ported?

Thanks for everyone's help!!!!



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Replies:

Posted By: Ketel22
Date Posted: August 25, 2003 at 10:17 PM

polyfil can increse the relative volume of the box by 20% alos porting it shouldnt need a much larger box if it needs to be any larger use more and longer ports



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