Follow us on Twitter Follow us on LinkedIn Like us on Facebook Follow us on Instagram Visit the TPC Store
Search the site



Montipower, Inc.

Problem Solving Forum

| More

August 29 - September 4, 2011

Specifications often state that glossy surfaces must be dulled before overcoating. What are some methods for doing this, especially when sanding isn’t feasible or desirable?

More items for Surface Preparation

Selected Answers

From Thomas Selby of Retired on August 31, 2011:
     When a glossy surface cannot be sanded or mechanically de-glossed, I have had good results with cleaning the surface per SSPC-SP 1 and applying a bonding primer, such as Carboline's RustBond or Carbocrylic 120 waterborne, depending on the topcoat and the environment the coatings are placed in.

From MOHAMED ZAKY ABU BAKAR of MINDUS (M) SDN BHD on September 8, 2011:
What about spraying the surface with an etching primer?

From Lee Edelman on September 1, 2011:
     Always try to overcoat before the window expires. If the surfaces to be coated are existing coatings, a bonding primer can be used if the systems are compatible and specification allows. The desired prep should produce a scarified surface for adhesion of the coatings. If sanding isn't feasible due to the dust generated, a slurry blast can also be considered. This method reduces suspended particles considerably.

From Donald Powers of DJ Powers Paint Inspections on August 30, 2011:
If a glossy surface cannot be sanded or mechanically de-glossed, a sure-fire way is to wipe the surface down with trisodium phosphate (TSP), then rinse and let dry prior to coating application.

Please sign in to submit your answer this question    

Tagged categories: Gloss and color; Overcoating; Surface preparation

Current PSF Question | Submit a PSF Question | Full PSF Archive

NLB Corporation
NLB Sure Shroud: Greater Protection and Flexibility
NLB’s Sure Shroud’s lighter weight and flexibility reduces operator fatigue and offers unmatched protection against high pressure hose ruptures. 10k to 40k psi rated.

Graco Inc.
Graco EcoQuip 2: Experience the Difference
While others claim their equipment is the same, none of them compare to Graco’s EcoQuip 2™ Vapor Abrasive® blasting line. Visit to learn more.

SAFE Systems, Inc.
Enduroguard -
The Tough Cable
for a Tough Industry.
Reduce maintenance costs and down time, increase job site safety with Enduroguard Cable. Available exclusively from SAFE Systems. UL listed, flexible, abrasion resistant and cut resistant.

Industrial Vacuum Equipment Corp.
Hurricane Vacuums
& Dust Collectors
Vacuum and dust collector hose, filters and related accessories.

Novatek Corporation
Dustless Coatings Removal
Novatek Corporation, Dustless Coatings Removal Strip, clean and profile all dust free! Comply with new lead standards. Contact today: (866) 563-7800

CHLOR*RID International Inc.
Companies that invest in corrosion control use CHLOR RID products
  • Soluble salt removal liquid
  • Test kits to verify contamination levels
  • Surface passivation to hold the blast
INFO@CHLOR-RID.COM 800.422.3217

DeFelsko Corporation
PosiTector SST Soluble Salt Tester
Measures the concentration of soluble salts on metal surfaces. Use with all Bresle patch types including the reusable, adhesive-free PosiPatch.

Vector Technologies Ltd.
The Original Performance Proven Vacuum Solutions
VecLoader® 616 Double Dump, Continuous Vacuum, 170 HP w/ 2,400 CFM & 28” Hg. 33% More Efficient than traditional vacuum systems! Choose Vector for the most powerful and the most reliable trailer mounted vacuums in the industry! Email us at: or call us at: 800-832-4010

New resins from BASF will have metals loving water!
Excellent corrosion resistance, low VOC, high gloss, thin films 800-231-7868

Blastox/The TDJ Group, Inc.
Blastox® - One Step Lead Abatement
Sandblast additive delivered to jobsite pre-blended to eliminate hazardous abrasive wastes. Why mix, meter or apply at the job-site? Blast with ease and
Let your painters paint!


Technology Publishing Co., 1501 Reedsdale Street, Suite 2008, Pittsburgh, PA 15233

TEL 1-412-431-8300  • FAX  1-412-431-5428  •  EMAIL

The Technology Publishing Network

Durability + Design PaintSquare the Journal of Protective Coatings & Linings Paint BidTracker

EXPLORE:      JPCL   |   PaintSquare News   |   Interact   |   Buying Guides   |   Webinars   |   Resources   |   Classifieds
REGISTER AND SUBSCRIBE:      Free PaintSquare Registration   |   Subscribe to JPCL   |   Subscribe to PaintSquare News
MORE:      About   |   Privacy policy   |   Terms & conditions   |   Site Map   |   Search   |   Contact Us