Coefficient of Friction | PWNA Technical Course
Understanding coefficient of friction for surface cleaning. Learn slip resistance, testing methods, and safety compliance standards.

Understanding Surface Safety and Slip Resistance in Cleaning Operations
The PWNA Coefficient of Friction course gives contractors the technical knowledge to assess and document slip resistance on commercial surfaces — before, during, and after cleaning. This course covers friction measurement fundamentals, ASTM testing standards, surface texture assessment, and the documentation methods needed to demonstrate safe, compliant cleaning outcomes in commercial environments.
Students learn how to measure and record pre- and post-cleaning coefficient values, identify surfaces where slip risk is elevated, and apply that knowledge to their cleaning process in a way that protects both the client and their business. The course is designed for contractors working in commercial settings where surface safety and liability documentation are part of the professional standard.
This training is grounded in ASTM testing methodology and real-world commercial application. The goal: give contractors the technical framework to deliver cleaning services that are not only effective, but documentable and defensible from a surface safety standpoint.
Benefits of PWNA Coefficient of Friction Training
This training is ideal for:
- Builds technical understanding of slip resistance measurement and ASTM testing standards
- Establishes a documentation process for pre- and post-cleaning surface safety
- Reduces liability exposure in commercial cleaning environments
- Demonstrates a higher level of professional due diligence to commercial clients
- Supports compliance with safety standards on managed properties and facilities
- Strengthens positioning for commercial, HOA, and facilities management accounts
Contractors who complete this course are better prepared to operate in commercial environments where surface safety accountability is expected — and better protected when liability questions arise.
Professional Training Backed by Industry Standards
What PWNA Certification Represents
PWNA Certification Training is part of the association’s commitment to ongoing professional education for members of the pressure washing industry. These programs are designed to support contractors at every stage of their career by reinforcing safe work practices, industry standards, and responsible methods.
Certification training focuses on building and maintaining job-ready skills through structured instruction. Courses emphasize proper techniques, surface awareness, equipment use, and risk reduction to help contractors perform work consistently and professionally. As standards evolve, PWNA training helps members stay current and aligned with accepted practices.
For PWNA members, certification and continuing education serve as tools for professional growth and accountability. Companies use training to onboard technicians, refresh skills, and promote consistency across crews. Individual contractors benefit by strengthening their knowledge and demonstrating a commitment to professionalism.
Staying Aligned With Evolving Industry Standards








