Will this work with water based primers for exterior auto body parts?

I would not use this with a primer, It is designed to "melt" the color coat into hard plastics and takes the place of primer for paint adhesion

Can Sand Free be used on plastic chrome I want black out or will it soften and wrinkle the chrome coating?

You need to use SEM sku# 39863 if you are using an adhesion promoter. Sand Free is probably to agressive for the plastic chrome

Will this work for the textured Sail panels for my Avalanche?

I used it on the fenders/trim on a jeep wrangler and it worked very well. To answer your question it depends on exactly what kind if plastic you want to paint. SEM has a good website. Look up what plastic your sail panels are made from and see if SEM lists it as one that this works on. Just make sure to paint it while it is still wet with this solvent.

What is the difference between this and their other plastic adhesion promoters?

I haven't used mine yet, however, it is recommended in this paint system and I have seen the results when the instructions are followed as directed by the manufacturer. I am not going to risk using anything else.

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SEM 38363 Sand Free - 11.6 oz

Product ID: 3699253

Details

Brand
SEM
Color
Clear
Item Form
Aerosol
Special Feature
Crack
Specific Uses For Product

🧩Softens plastic substrate for better paint bond

🧴11.6 oz aerosol can

🛠️Wet-on-wet adhesion promoter

€ 64.95

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Description

🎨 Unlock flawless paint adhesion on plastics—because your project deserves the perfect base!

CRACK RESISTANT FORMULA - Durable finish that stands the test of time
VERSATILE COMPATIBILITY - Perfect for interior and exterior plastic surfaces
EFFORTLESS ADHESION BOOST - Softens tough plastics for flawless paint grip
PRO GRADE PREP FOR VINYL PAINT - Trusted by pros to prevent peeling and scratching
PRECISION WET ON WET APPLICATION - Apply paint within 30 seconds for seamless bonding

SEM 38363 Sand Free is an 11.6 oz aerosol adhesion promoter designed to soften plastic substrates, enabling superior wet-on-wet paint adhesion on difficult-to-sand areas. Its crack-resistant formula ensures durable, long-lasting finishes ideal for both interior and exterior automotive plastics, making it a must-have prep product for vinyl paint applications.

Specifications

ASIN	B00B3HXM6I
Best Sellers Rank	#84,938 in Automotive ( See Top 100 in Automotive ) #88 in Automotive Spray Paint
Brand Name	SEM
Color	Clear
Compatible Material	Plastic
Container Type	Can
Customer Reviews	4.7 4.7 out of 5 stars (157)
Global Trade Identification Number	00646786383632
Included Components	SEM 38363 Sand Free - 11.6 oz
Item Form	Aerosol
Item Package Quantity	1
Item Type Name	SEM 38363 Sand Free - 11.6 oz
Item Weight	8 ounces
Manufacturer	SEM
Model	38363
Other Special Features of the Product	Crack Resistant
Part Number	38363
Specific Uses For Product	Interior/Exterior
UPC	646786383632
Unit Count	11.6 Ounce
Volume	11.6 Fluid Ounces
Warranty Description	Warranty

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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€ 64.95

Duties & taxes included

In stock

Sold byAmazon NetherlandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Netherlands.

Secure transaction

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Join PRO →

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TrustScore 4.5 | 7,300+ reviews

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3 days ago

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