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Cameron Sours's avatar

Copied from my comment on a discussion elsewhere:

This is a fun one for me, as I've worked in an auto manufacturing paint shop and I've done drywall.

They have something else common that the author didn't mention - imperfections.

I worked on custom homes with my dad growing up, and some customers demanded "triple perfect" work. Any wall can look smooth with lights pointed straight at it, or with diffuse lighting. Most walls look really bumpy when you shine a light down the wall. During construction, you are working with natural light. The customer sees the home after overhead lights are installed and after blinds and shutters are put in. This completely changes which imperfections are visible. Small scratches become pronounced; changes in texture show up. Customers can see ALL of your work. Who knows if the electrician has some half-tight wire nuts? But we all know when the drywall is bad.

Another thing drywall and automotive paint have in common: Repairs have a 50/50 chance of making things better. Automotive paint repair in this case being during the OEM process, not a collision repair. Collision repairs have a 0% chance of looking exactly like OEM paint.

Small imperfections may be fixed or covered up, but you have to skip back several steps in the process.

For drywall, if you are fixing scratches, you just have to disrupt part of the texture and paint. If you are fixing a lumpy butt joint (seam), then you have to disrupt a large area of texture and paint. The repaired texture may not match - air flow in the texture gun, humidity, exact proportions of the texture mix, temperature - will all be different. Paint has a different pore structure and dries differently on texture vs paint. This often affects the specular look of the paint.

For automotive paint, much of the same applies. Humidity, paint mix, metallic or mica mix, temperature all play a role. As well, for a repair, you are not painting primer, you are painting paint. It's very hard to match edges, so often whole body panels or even the whole vehicle is repainted. For the paint process I'm familiar with, you only get 2 tries to fix any large problems - the vehicle has to go through the oven again for each repair, and too many passes puts you out of compliance for the paint and adhesives.

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Anyway, how to replace drywall? I don't see it happening on a large scale. I think drywall can definitely be improved, but even for most of the replacements listed drywall will be installed under the product listed. For instance, MDF does not meet fire code. Anything that uses adhesives instead of screws is MUCH harder to repair.

Some things to ponder for replacements:

- Fire code

- Speed of install

- Look and feel

- Ease of repair ( you may not like drywall repair costs, but they're nothing compared to other products, even though I said it's very hard to make repairs look good, its much harder to make repairs in other products look good )

- Ease of demolition

- Toxicity/outgassing

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Kaleberg's avatar

I can imagine some improvements to drywall, but it will still have to be cut and custom fit on site. Something is still going to have to join the seams, even if it is something that sets in 15 minutes. It isn't just that people don't like seams. It's that people don't like seams that are arbitrarily placed as artifacts of construction.

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