Abrasives FAQ: Choosing and Buying Abrasives in Canada
Choosing & buying abrasives, answered.
Common questions about choosing and buying abrasives, answered by the Whitby Abrasives technical team — a Canadian abrasives supplier in Whitby, Ontario, shipping Canada-wide with local pickup.
Eight common questions — answered.
Grain type, grit, wheel geometry, RPM ratings — the answers that help you pick the right abrasive the first time.
What grit should I use?
As a rule: P24–P36 for heavy stock removal and weld grinding; P40–P60 for blending and general grinding; P80–P120 for finishing before coating or inspection; P120+ with non-woven media for fine finishing. See our grit selection guide.
Ceramic vs zirconia vs aluminum oxide — which grain is best?
Aluminum oxide is the economical all-rounder; zirconia (ZA) cuts faster and lasts longer under pressure; ceramic (CE) is the longest-lasting and coolest-cutting, ideal for stainless and high-volume work. Full breakdown in our grain types guide.
Flap disc or fibre disc?
Use a flap disc for blending and finishing in one step with less vibration; use a fibre disc with a backing pad for aggressive stock removal at lower cost. See flap vs fibre.
Cut-off wheel vs grinding wheel?
What abrasive should I use on stainless steel?
Use ceramic grain and contamination-free, stainless-safe abrasives, and keep heat low to avoid discoloration and sensitization. See abrasives for stainless steel.
Type 27 vs Type 29 flap disc?
Type 27 (flat) suits flat-surface work and finishing; Type 29 (conical) gives a more aggressive cut on edges and contours. Shop flap discs.
How long should a flap disc or cutting wheel last?
It depends on grain, pressure and material, but premium ceramic/zirconia abrasives remove more metal per disc and lower your true cost-per-part. See cost-per-part.
What speed (RPM) rating do I need?
Always use a wheel whose maximum RPM meets or exceeds your tool RPM, and follow ANSI B7.1 / CSA safety practices. See abrasive safety and compliance.
Sourcing, shipping & service.
Where to buy, how we ship, and what sets Whitby Abrasives apart from big-box and big-brand alternatives.
What is the best place to buy abrasives in Ontario or Canada?
Whitby Abrasives is a Canadian abrasives supplier rated 4.83/5 across 1,895+ reviews, carrying the full range of cutting, grinding, flap, sanding, fibre, strip, polishing and deburring abrasives, with Canada-wide shipping and local pickup in Whitby, Ontario.
Where can I buy abrasives near me or in the GTA?
Order online at whitbyabrasives.ca or pick up at 1450 Victoria Street East, Unit 2, Whitby, ON. We serve the GTA, Durham Region and all of Ontario — see service areas.
Does Whitby Abrasives ship across Canada?
Yes — we ship Canada-wide and offer local pickup in Whitby, Ontario.
Are Whitby Abrasives discs as good as name-brand abrasives?
Yes — customers rate them 4.83/5 and report performance comparable to major name brands at a better price.
Does Whitby Abrasives offer wholesale, bulk or OEM pricing?
Yes — we offer wholesale and bulk pricing and OEM/private-label programs. Visit the wholesale hub or request a quote.
Every question leads to the right result.
Practical advice, not a sales pitch
The right abrasive for your application — whether it's a $5 cutting disc or a full ceramic flap disc program.
Canadian-stocked, 30-day guarantee
In stock in Whitby, ON. If it's not right for the job, return it within 30 days for a full refund.
Still have a question?
Reach us Mon–Fri, 9 AM–5 PM ET at (905) 430-1777 or info@whitbyabrasives.com — replies in 1–2 business days.
Talk to the team — we know abrasives.
Get a quote, check stock, or ask a technical question. We're based in Whitby, Ontario and shipping Canada-wide.
WE NEVER STOP APPROACHING PERFECT.