Question 1

Has anyone used a clear cost over this? If so, what kind is recommended? Reason I ask is due to marks left from bird droppings

Accepted Answer

USC makes a aerosol clear  3680061, However we cannot guarantee results, surface would also need to be properly prepped, scuffed to ensure adhesion

Question 2

The spray comes out somewhat spotty/blotchy, is there a correct way to clean it or is it supposed to come out like this?

Accepted Answer

Well it souldn't be splotchy; if the can is going to sit unused for over 20 minutes, invert the can and spray onto scrap until cleared of spray. If the nozzle is somewhat clogged, clean it up with acetone and a very find pin. Fine abrasive, paper or steel wool should clean up the already sprayed. I don't know if  acetone or some other solvent can be used after the paint has set up. Very clean surface is needed: no oil, grease, or hand prints.
Oh yes, shake the can for at minimum 1 1/2 minutes before using. That marble in the bottom of can really need to sound sharp when it hits the bottom of the can. Also, best use it at room temperature. If cold, test it first on a piece of scrap. Read the directions about how far the can should be from the surface. And read about the time between sprays.
I've used SEM 39143 for my old toy cars for years. Guess they can put out a bad can, so test spray scrap. Good luck.

Question 3

Can this paint be used on metal trim with out primer?

Accepted Answer

It is for plastic trim.  If you want to use it on metal I would use primer so it sticks well.  It will be a little thick after a few coats.

Question 4

Can cera trim....a ceramic rubber and plastic coating by Last Coat be applied over this when cured..thank you?

Accepted Answer

Most likely. Trim Black is a lacquer type paint and should not react negatively to being overcoated.

ASIN	B073T7FQ23
Age Range Description	Adult
Brand	SEM
Brand Name	SEM
Color Code	#000000
Colour	Black
Container Type	Aerosol can
Coverage	Full
Customer Reviews	4.7 out of 5 stars 1,281 Reviews
Dry Time In Hours	48
Finish Type	Satin Gloss
Full Cure Time	48 Hours
Included Components	Masking Tape
Indoor Outdoor Usage	Outdoor
Is Waterproof	True
Item Form	Aerosol
Item Volume	15 Fluid Ounces
Item Weight	590 g
Manufacturer	SEM
Paint Type	Spray
Part Number	39143_2PACK
Size	15 Ounce (Pack of 2)
Special Feature	Fade Resistant
Special Features	Fade Resistant
Specific Uses For Product	Exterior,Satin Gloss
Surface Recommendation	Metal, Plastic, Vinyl
Unit Count	30 Ounce
Water Resistance Level	Not Water Resistant

SEM 39143 Trim Black Aerosol (2)

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