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Frequently Asked Questions

Can’t find your answer? Call us at 1-866-878-4213: Mon–Fri 7am–5pm PST.

Ordering & Shipping

What is your same-day shipping cutoff?

In-stock orders placed before 2pm PST Monday through Friday ship the same day, free to anywhere in the lower 48. Orders placed after 2pm or on weekends ship the next business day.

Do you offer free shipping?

Yes. Every order ships free to any address in the lower 48 states, with no minimum. Alaska, Hawaii and larger freight orders are quoted: call 1-866-878-4213 for the number.

Do you offer bulk or contractor pricing?

Yes. Call us directly at 1-866-878-4213 or email accounting@ecsempire.com to discuss volume pricing. Contractors with recurring orders or accounts over $5,000/year qualify for contractor rates. We can also set up Net 30 terms for qualified accounts.

What payment methods do you accept?

We accept all major credit cards (Visa, Mastercard, American Express, Discover), ACH/bank transfer, and check. Net 30 terms are available for approved business accounts. Call us to set up a trade account.

Do you ship outside the continental US?

Shipping is free everywhere in the lower 48. For Alaska, Hawaii, Puerto Rico, or international orders, contact us directly to get a shipping quote. Oversized items (large floor machines) may ship freight only, and larger freight orders are quoted.

Products & Compatibility

How do I choose the right blade bond: soft, medium, or hard?

Bond hardness is the opposite of what most people expect: the harder the material, the softer the bond you need.

Soft bond: hard, dense aggregate; cured concrete; silica-rich mixes. The softer matrix releases new diamond faster to keep cutting.

Medium bond: general-purpose; works on most standard concrete pours and mixed jobsite conditions.

Hard bond: soft, low-aggregate material; green (uncured) concrete; asphalt. Holds the diamond longer since the material wears the segments slowly.

When in doubt, call us. Tell us your material, aggregate type, and what saw you’re running: we’ll match the right blade in 2 minutes.

Will this blade fit my saw?

Check two things: arbor size and max RPM.

Most 14″ blades use a 1″ arbor. Some saws require a 20mm or other metric arbor: adapters are available.

Every blade has a rated max RPM. Your saw must not exceed that rating. Check your saw’s manual for its no-load RPM and compare to the blade spec.

If you have a specific machine (Husqvarna, Stihl, ICS, Partner), call us: we know the arbor and RPM specs for most production saws.

What is the difference between a segmented blade and a continuous rim?

Segmented blades have gullets (gaps) between the diamond segments. The gaps cool the blade and flush debris during cutting: used for dry cutting or aggressive work in concrete and masonry.

Continuous rim blades have no gaps. They cut cleaner with less chipping: used for tile, porcelain, and precision stone work where a chip-free edge matters. Almost always used wet.

What is Longopac and where can I buy it?

Longopac is a continuous tubular dust bag system that works with most HEPA vacuums. Instead of swapping standard bags, you seal and cut off full sections of the tube, then seal a new section in place, no dust exposure, no mess.

Order Longopac cassettes, holders and bags directly from us. In-stock orders placed by 2pm PST ship the same day, free to the lower 48. See the full Longopac range.

Surface Prep

What is the difference between metal bond and resin bond tooling?

Metal bond tooling is used for grinding and stock removal: it aggressively cuts into the concrete surface. Used in early stages (30 grit and below) to flatten, level, and open the surface.

Resin bond tooling is used for polishing: softer, finer grit pads that refine the surface through a grit progression (50, 100, 200, 400, 800, 1500, 3000). This is what produces the shine in polished concrete systems.

What is PCD tooling and when do I use it?

PCD (Polycrystalline Diamond) tooling is used for aggressive coating removal: epoxy, thick paint, adhesive, and high-build coatings. PCD segments cut through coatings without loading up the way standard diamond does.

Use PCD before your metal bond tooling when you have coatings to remove. Don’t run PCD directly on bare concrete: it will scratch aggressively and won’t leave the surface profile you need for polishing.

What is a cup wheel and how is it different from a grinding disc?

A cup wheel mounts on an angle grinder and has segments arranged around the cup’s face. It’s used for grinding flat concrete surfaces, removing coatings, and profiling before overlay or polishing. Single-row cup wheels are more aggressive; double-row are smoother.

A grinding disc is a flat disc used primarily for edge and corner work. Cup wheels cover more surface area and are the standard tool for walk-behind and hand grinder surface prep work.

How many grit passes does a polished concrete floor take?

A standard commercial polish progression typically runs:

Metal bond: 30/40 grit (grinding), 80/120 grit (transition)

Densifier applied after metal grinding (typically after 100-120 metal)

Resin bond: 50, 100, 200, 400, 800, 1500, 3000 grit

Guard/sealer applied after final polish

The number of passes depends on the starting condition of the slab. A heavily coated floor takes more prep passes. A well-cured, flat slab may skip some early metal grits. Call us and describe the floor: we’ll build the right system.

Dust & OSHA Compliance

What is OSHA Table 1 and does it apply to my crew?

OSHA’s Silica Standard (29 CFR 1926.1153) Table 1 applies to any construction activity that generates respirable crystalline silica (RCS), which includes cutting, grinding, or drilling concrete. If your crew runs a walk-behind saw, angle grinder, or core drill on concrete, Table 1 applies.

Table 1 specifies the required engineering controls for each task type. Most cutting and grinding tasks require a HEPA vacuum with a shroud or blade guard. Some tasks require wet cutting instead.

What HEPA vacuum do I need to be OSHA compliant?

OSHA requires a HEPA vacuum (minimum H11 or better: most professional units are H13 or H14). The vacuum must be sized in CFM to match the blade shroud: most 14″ walk-behind saws require at least 800 CFM.

We carry Pulsebac units (PB800, PB1400) that are purpose-built for concrete cutting compliance. The key is matching the vacuum to your specific saw and shroud setup: call us and we’ll spec the right combination.

How do I handle wet cutting slurry?

Wet cutting eliminates airborne silica dust but creates slurry (water + concrete fines) that cannot go down a storm drain: it’s considered a regulated waste in most municipalities.

You have two options: GelMaxx slurry solidifier turns the slurry into a solid that can go in construction waste. Or contain it with a wet vacuum system and dispose as per your local requirements. We carry full slurry management packages: call us to spec a system for your job.

Returns & Support

What is your return policy?

We accept returns on unused items in original packaging within 30 days of purchase. Contact us at accounting@ecsempire.com or call 1-866-878-4213 to initiate a return.

Diamond tooling that has been run on any material cannot be returned: this is standard industry practice. If a blade arrives defective or damaged in shipping, contact us immediately and we will replace it at no charge.

What if a blade isn’t cutting right or wears too fast?

Premature wear or poor cutting is usually a bond mismatch, not a defective blade. Before assuming the product is bad, call us. Describe the material, what you’re seeing, and how you’ve been running it. We can usually diagnose the issue in one conversation and get you sorted.

If it is a genuine product defect, we’ll make it right. We’ve been doing this since 2006 and we stand behind what we sell.

How do I reach a product expert?

Call 1-866-878-4213 or email accounting@ecsempire.com. We’re available Monday through Friday, 7am to 5pm PST. Leave a message outside those hours and someone will get back to you the next business day.

You’ll always talk to someone who has actually worked with the tools, not a call center reading from a catalog.

Call Us. We’ll Give You a Straight Answer.