Sprayway SW946 Silicone Spray and Release Agent
Priced as of May 26, 2026
4.6(1,314 ratings)Buy on AmazonSaved to your guest loadout. Sign up to also save to your Cabinet (consumables) or Kit (tools you own).
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Prices may varySerious hazard — read before use
The manufacturer's Safety Data Sheet classifies this product with one or more GHS Category 1 health hazards — the most severe tier. The hazard statements in quotes below are the verbatim GHS language from the SDS, as required by OSHA's Hazard Communication Standard. The line under each statement translates the GHS classification into plain language.
- H304 “May be fatal if swallowed and enters airways.”
GHS Category 1 aspiration toxicity — thin, oily liquids can slip into the lungs if swallowed, causing chemical pneumonia.
If swallowed, inhaled, or splashed in eyes:
Call Poison Control immediately at 1-800-222-1222 (US, 24/7, free) and have the product container with you. Poison Control's standing guidance is to not induce vomiting after chemical exposure; they will direct first-aid steps based on the specific product.
About this product's hazards. This product's Safety Data Sheet uses signal word danger. Read the manufacturer's SDS and follow all safety instructions before use. CarCareTruth ratings translate the manufacturer's safety sheet. They do not replace the SDS or substitute for a hazard assessment specific to your task.
Health score is for adult use as intended, per the manufacturer's SDS. It does not model child ingestion, accidental spill cleanup, or off-label use. See the safety panel below for full hazard classification, and /disclaimer for the full editorial scope.
From the Safety Data Sheet
Full SDS ↗ (rev. 2025-08-11)GHS hazard codes are quoted from the manufacturer’s Safety Data Sheet. PPE tiers below translate those codes and the listed ingredient chemistry; they are not CarCareTruth recommendations.
EyesSituationalMfr. SDS §8SkinSituationalMfr. SDS §8LungsSituationalMfr. SDS §8 · 29 CFR 1910.1200(f) · GHS H304Ventilation—No PPE in published sourcesShow details for all categories ▾Hide details ▴
From the manufacturer’s Safety Data Sheet, Section 8
“No serious eye damage or eye irritation classification confirmed from the SDS. The DANGER signal word comes from an aspiration hazard and flammability, not from an eye-hazard code. Eye protection is appropriate when spraying overhead where aerosol mist can fall into the eyes.”
— Sprayway
CarCareTruth publishes the cited sources verbatim and does not advise what action a user should take. Consult the full SDS before use.
From the manufacturer’s Safety Data Sheet, Section 8
“No skin irritation classification at the mixture level in the SDS. The petroleum-based carrier can cause irritation with prolonged or repeated skin contact. Gloves are reasonable for extended application sessions.”
— Sprayway
CarCareTruth publishes the cited sources verbatim and does not advise what action a user should take. Consult the full SDS before use.
From the manufacturer’s Safety Data Sheet, Section 8
“No respiratory irritation classification in the SDS. This aerosol carries a petroleum-based carrier and hydrocarbon propellants with an estimated 540 g/L combined VOC. Use outdoors or with the garage door open — aerosol VOC concentrates quickly in enclosed spaces.”
— Sprayway
U.S. regulatory standard
29 CFR 1910.1200(f); 1910.132(d)
“The employer shall assess the workplace to determine if hazards are present, or are likely to be present, which necessitate the use of personal protective equipment.”
OSHA standards apply to workplaces. Cited here as the U.S. reference threshold for the underlying hazard class.
CarCareTruth publishes the cited sources verbatim and does not advise what action a user should take. Consult the full SDS before use.
No PPE specified in published sources for ventilation. Absence does not imply “not needed” — consult the full Safety Data Sheet.
PPE tiers translate the manufacturer’s SDS and U.S. regulatory standards. Not professional safety advice. How we report safety.
The Podium · Top 3 in Silicone Lubricant
See the full ranking →This product ranks #6 of 9 in Silicone Lubricant.Three above it ↓
CarCareTruth's Analysis
Last reviewed May 27, 2026
TL;DR Stops squeaks and friction on rubber and plastic, confirmed by 1,300+ buyers for mold-release and general lubrication. All community evidence is from craft and industrial use, not automotive door seals, so expect average quality scores for the automotive use case. DANGER-labeled from a swallowing hazard, not a respiratory one. Use outdoors given the high-VOC aerosol propellant.
What it is and how it performs
Sprayway SW946 is an industrial silicone spray built for mold release, dye lubrication, and friction reduction on rubber and plastic. Community reviews (1,300+ verified purchases, 4.6 stars) confirm it works cleanly in those applications with no staining or residue complaints. No automotive door-seal or weatherstripping reviews appear in the community data, so performance on car rubber is unverified. No directional straw is included. Keep it off painted panels and areas that may need bodywork — silicone residue prevents primer and paint from bonding.
Who should buy this — and who should skip it
Car owners willing to use an industrial product on automotive rubber without confirmed compatibility data. Skip it if you need verified EPDM seal compatibility. Never apply near brake components; use white lithium grease for metal-on-metal surfaces and penetrating oil for seized fasteners.
Safety and environmental impact
DANGER from ingestion only — petroleum-based carrier can cause lung damage if swallowed; do not induce vomiting. No respiratory or eye irritation classified. High-VOC aerosol (~540 g/L); use outdoors. The silicone film stays on the surface and does not run off into drains.
Frequently asked questions
Is Sprayway SW946 Silicone Spray and Release Agent safe to use?▾
The Safety Data Sheet for Sprayway SW946 Silicone Spray and Release Agent carries a DANGER signal word, with classified hazards including H222 (extremely flammable aerosol); H229 (pressurized container: may burst if heated); H304 (may be fatal if swallowed and enters airways). See the PPE breakdown above for use-case-specific guidance translated from the SDS hazard codes.
How does Sprayway SW946 Silicone Spray and Release Agent score on CarCareTruth?▾
CarCareTruth scores Sprayway SW946 Silicone Spray and Release Agent at 5.9 out of 10 on the composite CCT score, with a health sub-score of 6.5/10. The CCT score blends real-world effectiveness, ingredient health impact pulled from the manufacturer's safety sheet, and environmental footprint against a published category rubric. See the methodology link on this page for the full scoring breakdown.
What's in Sprayway SW946 Silicone Spray and Release Agent?▾
Per the Safety Data Sheet ingredient disclosure: Butane (CAS 106-97-8) 30-60%; Propane (CAS 74-98-6) 10-30%; Naphtha (Petroleum), Heavy Alkylate (CAS 64741-65-7) 10-30%; Polydimethylsiloxane (CAS 63148-62-9) 1-5% (per 2020 US SDS; omitted from 2025 SDS as below disclosure threshold). Per SDS rev 2025-08-11 (Canadian WHMIS 2015 format, GHS-aligned).
From the manufacturer
Marketing copy from Sprayway, via Amazon. Not editorial.
- •Heat-stable silicone release agent
- •NSF registered
- •Colorless, non-staining
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Manufacturer images
Manufacturer specifications
- Material
- Silicone
- Brand
- Sprayway
- Package Information
- Can
- Liquid Volume
- 11 Fluid Ounces
- Item Weight
- 14.4 ounces
- Brand Name
- Sprayway
- Recommended Uses For Product
- Industrial, Mechanical
- Item Form
- Spray
- Manufacturer
- Sprayway
- Unit Count
- 11.0 Ounce
- UPC
- 041911009461
- Number of Items
- 1
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Top Amazon review
↗External — Amazon's most-helpful review for context.
Resin Art Mold Release! This Stuff Works!!
I bought this for RESIN ART MOLDS- TO DEMOLD/RELEASE. I’m spraying this lightly onto the silicone molds at about 10- 12 inches away for just a second or two blast at each cavity, or across the entire area, if they are really smaller. I had been reluctant to buy a mold release agent because I thought my pieces were releasing easy. Well, after using this I now know I was putting my molds thru unnecessary stress because they just pop out of the molds as if they want to leave there & quickly! After researching the ‘Life Expectancy Of Silicone Molds’, I became painfully aware that my molds, & yours, will only last a certain number of pours -probably 8 -9 or less - before they lose their glossiness.. & then a couple more times & they are no longer good at all. However, with a proper release agent ..this spray or similar, the life of the molds are jumped up by many many more pours/castings! Now I understand how important it is to use a release agent FROM THE VERY 1st POUR/BEGINNING! I’ve seen it with my own eyes.. every single pour takes a little bit of a molds finish with it.. so every single pour reduces the quality of the pieces as it goes along. We pay a lot of money for our molds, so why we refuse to buy something so simple to care for them is something I don’t understand.. but I have made the mistake with numerous molds .. and I won’t be without this product now that I know.Some molds that are deeper you have to get the spray nozzle a bit closer to it and do a quick blast left & right. And after spraying, they all have to be cleaned a bit on the flat surface area up & around the outside of the actual mold. Which isn’t anything but a fast wipe down with a baby wipe or soft tissue paper. (I do it with the mold upside down so no debris falls in) It’s just a tiny bit of overspray that beads up & probably can be left but I prefer to wipe it away before pouring resins. The spray- even tho it’s wiped off, also makes cleanup easier after the pieces are cured. Using tape: BEFORE REMOVING THE PIECES .. place a piece of scotch tape onto the mold & burnish lightly with a fingertip.. & lift away excess resins drizzles & glitters. Repeat until cleaned. Cheaper tape is better! Then demold the pieces. 😊This can is heavy. It will last a long time. For $14 or $15 to save a multitude of molds over & over it is literally pennies per use! ..& it can fix squeaky doors & windows and shine shoes or purses too, haha!Edit 09-27-2020: came back after talking with a fellow resin artist who had issues & said he had no luck with this, to add this 100% important thing.. after cleaning up the molds with clear tape I spray the molds & then bag each mold individually in a zipper bag. However, ->> JUST A MINUTE OR TWO BEFORE POURING RESIN INTO A MOLD I GIVE IT ANOTHER QUICK SHOT OF THIS SPRAY!!! If your molds are not releasing right and you’ve used the spray right after cleaning them.. YOU HAVE TO RE-SPRAY AGAIN JUST BEFORE POURING!! The spray we’re doing right after cleaning for storage keeps them in good condition & helps them to last longer.. but it is absorbed. I still do this as it keep them pliable & soft 💯💯💯.. then after I get everything ready & my micas, pastes, glitter colors etc are all made I quickly step off to the side and spray them all again. MY PIECES ARE POPPING OUT LIKE MAGIC! I’m happy to report that my friend says that he’s now doing the 2nd spraying- right before pouring - his resin & he is so glad we talked about this.. he’s thrilled with the results!I know this was a long read.. but if you’re like we are YOU HAVE INVESTED HUNDREDS OF DOLLARS on molds!! Doing a little research isn’t a bad thing to save all those molds! Spray twice! Once for the long term care & once for the quick release. Happy Arting Everybody! 🌹💜✌️