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Post by tangobravo on Jan 22, 2022 13:17:00 GMT -5
Having seen how badly the bottom side of these chainsaws are abused and battered, and having repainted only to have a repeat performance---Has anyone ever attempted a "Rhino Lining" or similar refinishing of the belly of one of these beasts? Seems to work so well for a truck floor bed liner that it might be a good, durable and nice looking way to armor plate this area. Any experiences??
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Post by stillsawing on Jan 22, 2022 20:58:00 GMT -5
The only thing that I've seen that would seem practical is a aluminum skid plate, like the ones that are available for the Stihl saws. Getting anything to stick to magnesium seems futile. I don't to set a saw down on concrete or a bare bed of a pickup. A 4x6 rubber cow mat works great.
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Post by ronaldt on Jan 23, 2022 14:29:25 GMT -5
Having seen how badly the bottom side of these chainsaws are abused and battered, and having repainted only to have a repeat performance---Has anyone ever attempted a "Rhino Lining" or similar refinishing of the belly of one of these beasts? Seems to work so well for a truck floor bed liner that it might be a good, durable and nice looking way to armor plate this area. Any experiences?? I don't see any reason why you couldn't put spray on bed liner on a saw. Seems like a good idea! |
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Post by tangobravo on Jan 23, 2022 15:27:45 GMT -5
I might try it next time and see if it holds up well. Not real clear if I can get it to bond well and not peel. Hope that it could be easily touched up if it starts looking rough as well!
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Post by charles on Jan 23, 2022 16:59:12 GMT -5
Just make an aluminum skid plate and "Rhino Shield" it . A win-win !
Charles
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Post by ronaldt on Jan 23, 2022 18:09:45 GMT -5
I might try it next time and see if it holds up well. Not real clear if I can get it to bond well and not peel. Hope that it could be easily touched up if it starts looking rough as well! If paint will stick, so will bed liner. We spray raptor liner made by upol on the bottoms of doors and rocker panels now and then. Pretty durable product. Greatly reduces rock chips on a vehicle and can also cover up some ugliness... |
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Post by sweepleader on Jan 23, 2022 21:22:11 GMT -5
I would be inclined to use a self etching primer before the bedliner, that is the only thing I have much confidence in sticking to mag saws. Maybe Leon could shed some light, he does a whale of a job with paint.
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Post by tangobravo on Jan 23, 2022 23:22:16 GMT -5
  OK- here's the before and after on the test volunteer subject. Only lightly wet sanded with 600 grit paper. Applied Dupli-Color "Truck Bed Coating". Painted the bottom like I'd do a complete saw. I'll rough-house it a little bit after a thorough drying and curing, then see what happens. 1st finding: Definitely has a different sound setting it down on a hard surface- rubbery like cushioning. |
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Post by onlyhomelites on Jan 23, 2022 23:32:32 GMT -5
I think the key is surface prep. A clean surface that has been roughed up would be best. If going over factory paint, I'd scuff it with some 100 grit first. Bare metal, I'd clean it with acetone, scuff it with some 60 grit and then spray the liner. The self etching primer isn't a bad idea, but it's worth a try without it too.
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Post by tangobravo on Jan 24, 2022 20:46:10 GMT -5
 Here's the test subject after some aggressive rubbing on an abrasive door mat I have. Seems to rub off some and likely not a real strong bond to the metal anyway. Duplicolor recommends prepping with a Scotch-brite or similar. A more aggressive prep may help make for a better bond. I am able to scrape the coating off fairly easily, and may try again with a more abrasive surface prep a bit later. For now, not real impressive-- |
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Post by onlyhomelites on Jan 24, 2022 23:13:33 GMT -5
Well Mac might be right about the self etching primer...we'll see what round 2 does!
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Post by stillsawing on Jan 25, 2022 18:14:41 GMT -5
Magnesium seems to have the same properties as zinc, they can shed anything that is applied on it. However, wasn't the primer for aluminum that was outlawed called zinc chromate?
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Post by tangobravo on Jan 25, 2022 22:17:56 GMT -5
Well, after stripping and re-prepping a portion of the handle with Scotch-Brite abrading the magnesium handle, I refinished with the Truck Bed Liner. After a little abrading on the mat, it was coming off again fairly easily. The Trunk Liner material just does not bond well to the metal. It seems to bond with a little better adhesion to painted surfaces, but still comes off easliy. I was able to easily scrape it off with a thumb nail drag as can be seen in 2 spots in the latest try.  I'm declaring this idea still-born and can't recommend it as a way to protect the underside of these chainsaws. I have had much better results with simple repainting and find that a far superior way to deal with this issue. Was worth investigating, but I just don't find this to be a good solution. |
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Post by ronaldt on Jan 26, 2022 7:48:20 GMT -5
There are an infinite number of variables when it comes to paint and refinish adhesion. I think that bed liner material would stick if a high quality epoxy primer was applied first. There are also many grades of quality when it comes to sprayable bed liner. High quality stuff like rhino is very expensive and might be cost prohibitive for a saw unless you have a friend in the business of spraying liners.
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