September 2018


What compels someone to care? Perhaps it’s because something has personally affected you or someone you know. Or maybe it just happens over time; then something strikes a chord in you and opens the floodgates of a desire to bring about change.  For Joel Guth, it was both. And thus, the story of his 20-year dance with silica began. The Beginning As a third-generation mason contractor, Joel had been in and around masonry his entire life. “I remember being 10 years...

June 2014

iQ Power Tools Silica Part 4 Time

Silica Part IV: Time

UPDATED FOR THE NEW OSHA PEL 2017 What We've Learned In part I of this series on silica dust and the OSHA PEL, we described what a permissible exposure limit (PEL) is and the three factors that make up the OSHA PEL: air, dust and time. We also learned that exposure is calculated in terms of micrograms per cubic meter (μg/m3), and we interpreted the current OSHA PEL as 50μg/m3. In part II we set out to learn how much air a...

May 2014

iQ to Host Silica Training Webinar with MCAA

Have you heard enough about silica over the past year? With the new proposed OSHA rule, confusing standards, studies and opinions it's easy to get lost in all the information. As a contractor, what do you really need to know about silica? iQ Power Tools President and silica expert Joel Guth will be hosting a silica training webinar with the MCAA on Monday, June 16 at 11:00 AM Eastern, 8:00 AM Pacific. His focus is on contractors, and what you really...

April 2014

Dust is Impacting Your Contracting Business

3 Ways Dust is Killing Your Business

You let the dust fly. You know it's a problem, but you don't have a choice. The fact is you run a business and you have to get the job done. We know the problem, because we were contractors. And we've spoken with thousands of other contractors. But most of them don't realize how much silica dust is costing them. Here's how dust is killing your business. (more…)

60mm paver

Silica Part III: How Much Dust is Too Much?

UPDATED FOR THE NEW OSHA PEL 2017 In our introduction to this series on understanding the OSHA PEL, we described what a PEL is and outlined the three factors which determine the PEL: Air, Dust and Time. Here in part III we're going to explain the second factor: Dust. There are a few questions we need to answer about dust: How much dust is produced from cutting materials? How much silica is in that dust? How much dust is too much? ...

February 2014

January 2014