Quick answer: all three are spray-on, wipe-off graphene-infused sprays for quick protection and top-ups. 303 Graphene Nano Spray is the cheapest per ounce and needs no cure time before water, according to its Canadian retailer. Adam’s Graphene Ceramic Spray lists the widest range of exterior surfaces and asks for a 4-hour cure. Magic Shield Graphene Ceramic Spray is sold directly by a Canadian store in two sizes, gives a clear surface-temperature range (15°C–24°C) for Canadian conditions, and pairs with our full coating kits. The right choice depends on price per ounce, where you buy, and whether you are topping up a Magic Shield coating.
Side-by-side comparison
| Magic Shield Graphene Ceramic Spray | Adam’s Graphene Ceramic Spray Coating | 303 Graphene Nano Spray Coating | |
|---|---|---|---|
| Size and price (CAD) | 9 oz: $39.99 16 oz: $57.99 | 12 oz (355 mL): $54.99 | 16 oz: $29.99 (retailer also lists 15.5 oz) |
| Approx. price per oz | $4.44 (9 oz) / $3.62 (16 oz) | $4.58 | $1.87 |
| Where we checked the price | magic-shield.ca | Carzilla (Calgary) | Carzilla (Calgary) |
| Surfaces listed | Paint and clear coat, wheels, exterior trim, headlights, glass | Glass, headlights, chrome, trim, wheels, soft tops, bed liners and paint | Paint, glass, wheels, trim, chrome |
| Application temperature | 15°C–24°C surface, in the shade | Not stated on the product page | Not stated; retailer says it can be applied in sun |
| Keep away from water after applying | 4 hours indoors (24 hours if outdoors) | 4 hours before rain, snow or water | No cure time needed, per retailer |
Prices and details were checked on 20 October 2026 on magic-shield.ca and on the Carzilla product pages for Adam’s and 303, plus Adam’s Canadian product page. Prices change; check the seller before you buy. Each brand makes its own durability claims, and real-world life depends heavily on prep, washing and winter conditions, so we have compared what each label tells you to do rather than the durability numbers.
Which one should you choose?
Choose 303 Graphene Nano Spray if price per ounce matters most
At about $1.87 per ounce it is the least expensive of the three, and its retailer says it needs no cure time before water, which is convenient if you have to work outdoors in mild weather.
Choose Adam’s Graphene Ceramic Spray if you want one bottle for every exterior surface
Adam’s lists the broadest range of surfaces, including soft tops and bed liners, and is widely stocked in Canada through specialist retailers and Canadian Tire.
Choose Magic Shield Graphene Ceramic Spray if you buy from a Canadian store or use our coatings
The Graphene Ceramic Spray Coating is sold and shipped by Magic Shield Canada in CAD, comes in a 9 oz size for one car and a 16 oz size for larger vehicles or several cars, and has clear temperature and keep-dry guidance on the label. It also works as a top-up over the Graphene Ceramic Coating (50 mL), Ceramic Coating PRO 10H and Diamond AI Coating if you already use one of those.
How to get the best result from any graphene spray
- Wash with a pH-neutral shampoo such as Graphene Shampoo and dry fully.
- Decontaminate with Iron Remover and a Clay Bar Kit if the paint feels rough.
- Wipe panels with Prep Spray so the spray bonds to clean clear coat.
- Work one panel at a time in the shade on a cool, dry surface, and buff off with a clean microfiber towel.
- Keep the car dry for the time on the label. In winter, do this indoors (see our winter application guide).
Frequently asked questions
Is graphene spray better than ceramic spray?
Most graphene sprays are SiO₂ (ceramic) sprays with graphene added. Brands say graphene improves slickness and water behaviour; in practice the prep and how often you reapply make a bigger difference than the label name.
Can I use a graphene spray on top of a ceramic coating?
Yes, spray coatings are commonly used as top-ups over a cured coating, and Adam’s markets its spray this way. Let the base coating finish curing first, then apply the spray to clean, dry paint.
Which graphene spray is best for Canadian winters?
None of them stops road salt from building up, so regular rinsing still matters. Apply in a warm, dry space before winter and top up during mild spells. Our guide on protecting your paint from road salt covers a full winter routine, and our guide on how to choose a DIY ceramic coating kit explains when to step up from a spray to a full coating.
