NSF Product and Service Listings

These NSF Official Listings are current as of Tuesday, October 28, 2025 at 12:15 a.m. Eastern Time. Please contact NSF to confirm the status of any Listing, report errors, or make suggestions.

Alert: NSF is concerned about fraudulent downloading and manipulation of website text. Always confirm this information by clicking on the below link for the most accurate information: http://info.nsf.org/Certified/PwsComponents/Listings.asp?Company=28470&Standard=061&


NSF/ANSI/CAN 61
Drinking Water System Components - Health Effects

NOTE: Unless otherwise indicated for Materials, Certification is only for the Water Contact Material shown in the Listing. Click here for a list of Abbreviations used in these Listings. Click here for the definitions of Water Contact Temperatures denoted in these Listings. Products certified to NSF/ANSI/CAN 61 comply with the health effects criteria in NSF/ANSI/CAN 600.

 
Henkel Corporation 
One Henkel Way
Rocky Hill, CT 06067 
United States 
860-571-5100
Visit this company's website


Facility : Clearwater, FL

Joining and Sealing Materials

    Water Water
    Contact Contact
Trade Designation Size Temp Material

Adhesives
Loctite UK 178A and 178B Structural Polyurethane[1] [2] [3] CLD 23 ADH 

[1] Minimum cure time is 7 days.
[2] Formerly Macroplast UK 178A and 178B.
[3] Mix ratio is 1:1 (A:B) by volume.



Facility : Seabrook, NH

Joining and Sealing Materials

    Water Water
    Contact Contact
Trade Designation Size Temp Material

Adhesives
Loctite® AA H3101[1] [2] [3] [4] CLD 23 ADH
Loctite® SF 7649[5] [6] [7] 4.5 joints/L C. HOT JNG 

[1] Mix ratio is 1:1 (A:B) by weight or volume.
[2] Certification does not include use with Primer 2000.
[3] Formerly Loctite Speedbonder H3101.
[4] Certified for joining pipes and fittings 4 inches and greater.
[5] Evaluated for use with Henkel Loctite's anaerobic adhesives and sealants.
[6] Only products bearing the NSF Mark on the product, product packaging, and/or
    documentation shipped with the product are Certified.
[7] Formerly Loctite 7649 Primer N.



Facility : Cleveland, OH

Joining and Sealing Materials

    Water Water
    Contact Contact
Trade Designation Size Temp Material

Impregnation Resins[1] [2]
Loctite® IS RESINOL RTC™ [3] C. HOT SLT 

[1] Formerly Loctite Resinol RTC.
[2] Certified for use with or without Loctite IS 7102 Accelerator.  This product has not
    been evaluated with any other activator or accelerator.
[3] Maximum use level for residential applications is 31 sq. in./L (335 sq. in. per
    residence).

Thread Compounds
Loctite® DRI 513[4] >= 1/2" C. HOT TS
Loctite® DRI 513HV[5] >= 1/2" C. HOT TS
Loctite® DRI 513MV >= 1/2" C. HOT TS 

[4] Formerly Loctite 513 Dri-Seal.
[5] Formerly Loctite 513HV Dri-Seal.


Protective (Barrier) Materials

    Water Water
  Water Contact Contact Contact
Trade Designation Size Restriction Temp Material

Coatings - Fittings
Loctite PC 7227 Blue[1] >= 1" CLD 23 EPOXY
Loctite PC 7227 Gray[2] >= 1" CLD 23 EPOXY
Loctite PC 7228 White[3] >= 1" CLD 23 EPOXY 

[1] Number of Coats: 1-3
    Maximum Field Use Dry Film Thickness (in mils): 60 total; 20 per coat
    Recoat Cure Time and Temperature: 1 hour at 25°C
    Final Cure Time and Temperature: 24 hours at 25°C
    Special Comments: Mix ratio of Part A:Part B is 2.75:1 by volume or 4.2:1 by weight.
    Induction time is 3-5 minutes.
[2] Number of Coats: 1-3
    Maximum Field Use Dry Film Thickness (in mils): 120 total; 40 per coat
    Recoat Cure Time and Temperature: 1 hour at 25°C
    Final Cure Time and Temperature: 24 hours at 25°C
    Special Comments: Mix ratio of Part A:Part B is 2.75:1 by volume or 4.8:1 by weight. 
    Induction time is 3-5 minutes.
[3] Number of Coats: 1-3
    Maximum Field Use Dry Film Thickness (in mils): 120 total; 40 per coat
    Recoat Cure Time and Temperature: 1 hour at 25°C
    Final Cure Time and Temperature: 24 hours at 25°C
    Special Comments: Mix ratio of Part A:Part B is 2.8:1 by volume or 4.5:1 by weight.
    Induction time is 3-5 minutes.

Coatings - Pipe
Loctite PC 7227 Blue[1] >= 22" CLD 23 EPOXY
Loctite PC 7227 Gray[2] >= 22" CLD 23 EPOXY
Loctite PC 7228 White[3] >= 22" CLD 23 EPOXY 

[1] Number of Coats: 1-3
    Maximum Field Use Dry Film Thickness (in mils): 60 total; 20 per coat
    Recoat Cure Time and Temperature: 1 hour at 25°C
    Final Cure Time and Temperature: 24 hours at 25°C
    Special Comments: Mix ratio of Part A:Part B is 2.75:1 by volume or 4.2:1 by weight.
    Induction time is 3-5 minutes.
[2] Number of Coats: 1-3
    Maximum Field Use Dry Film Thickness (in mils): 120 total; 40 per coat
    Recoat Cure Time and Temperature: 1 hour at 25°C
    Final Cure Time and Temperature: 24 hours at 25°C
    Special Comments: Mix ratio of Part A:Part B is 2.75:1 by volume or 4.8:1 by weight. 
    Induction time is 3-5 minutes.
[3] Number of Coats: 1-3
    Maximum Field Use Dry Film Thickness (in mils): 120 total; 40 per coat
    Recoat Cure Time and Temperature: 1 hour at 25°C
    Final Cure Time and Temperature: 24 hours at 25°C
    Special Comments: Mix ratio of Part A:Part B is 2.8:1 by volume or 4.5:1 by weight.
    Induction time is 3-5 minutes.

Coatings - Valve
Loctite PC 7227 Blue[1] >= 1" CLD 23 EPOXY
Loctite PC 7227 Gray[2] >= 1" CLD 23 EPOXY
Loctite PC 7228 White[3] 1" CLD 23 EPOXY 

[1] Number of Coats: 1-3
    Maximum Field Use Dry Film Thickness (in mils): 60 total; 20 per coat
    Recoat Cure Time and Temperature: 1 hour at 25°C
    Final Cure Time and Temperature: 24 hours at 25°C
    Special Comments: Mix ratio of Part A:Part B is 2.75:1 by volume or 4.2:1 by weight.
    Induction time is 3-5 minutes.
[2] Number of Coats: 1-3
    Maximum Field Use Dry Film Thickness (in mils): 120 total; 40 per coat
    Recoat Cure Time and Temperature: 1 hour at 25°C
    Final Cure Time and Temperature: 24 hours at 25°C
    Special Comments: Mix ratio of Part A:Part B is 2.75:1 by volume or 4.8:1 by weight. 
    Induction time is 3-5 minutes.
[3] Number of Coats: 1-3
    Maximum Field Use Dry Film Thickness (in mils): 120 total; 40 per coat
    Recoat Cure Time and Temperature: 1 hour at 25°C
    Final Cure Time and Temperature: 24 hours at 25°C
    Special Comments: Mix ratio of Part A:Part B is 2.8:1 by volume or 4.5:1 by weight.
    Induction time is 3-5 minutes.



Facility : Düsseldorf, Germany

Joining and Sealing Materials

    Water Water
    Contact Contact
Trade Designation Size Temp Material

Adhesives
Loctite UK 178-1 A and 178B[2] [1] D. HOT ADH
Loctite UK 178A and 178B[2] [1] D. HOT ADH 

[1] Mix ratio is 1:1 (A:B) by volume.
[2] Minimum cure time is 7 days.



Facility : Budapest, Hungary

Joining and Sealing Materials

    Water Water
    Contact Contact
Trade Designation Size Temp Material

Sealants
Loctite 55 Pipe Sealing Cord [1] C. HOT SLT
Tangit UNI-LOCK [1] C. HOT SLT 

[1] Certified for use with pipes >=1/4".

Thread Compounds
Loctite 55 Pipe Sealing Cord [1] C. HOT SLT
Tangit UNI-LOCK [1] C. HOT SLT 

[1] Certified for use with pipes >=1/4".



Facility : Dublin, Ireland

Joining and Sealing Materials

    Water Water
    Contact Contact
Trade Designation Size Temp Material

Adhesives
LOCTITE® 5776™[1] [2] >= 1/2" C. HOT ADH 

[1] Certified for use without activators.
[2] Certified for a maximum of 10 joints per liter.



Facility : Casarile (MI), Italy

Mechanical Devices

    Water Water
    Contact Contact
Trade Designation Size Temp Material

Potting Compounds[1]
LOCTITE EA 9452 [2] CLD 23 EPOXY 

[1] Mix ratio of Part A to Part B is 2.56:1 by weight.
[2] Certified for use as a potting material in hollow fiber filtration devices 4 inches in
    diameter and larger with a minimum daily flow of 500 Liters.



Facility : Sabana Grande, Puerto Rico

Joining and Sealing Materials

    Water Water
    Contact Contact
Trade Designation Size Temp Material

Adhesives[1]
LOCTITE® 263[2] [3] >= 1/2" C. HOT ADH
Loctite 648[3] >= 1/2" C. HOT ADH
Loctite® 242 Threadlocker[2] >= 1/2" D. HOT SLT
Loctite® 680 Retaining Compound >= 1/2" C. HOT ADH 

[1] Only products bearing the NSF Mark on the product, product packaging, and/or
    documentation shipped with the product are Certified.
[2] Certified for a maximum use of 2 joints/liter.
[3] Certification does not include activators.

Sealants[1]
Loctite® 290 Threadlocker[2] >= 1/2" D. HOT SLT
Loctite® 480 Instant Adhesive >= 1/2" D. HOT SLT
Loctite® 561[4] [2] D. HOT SLT
Loctite® 565 Thread Sealant[5] [6] C. HOT TS
Sprinkler System Thread Sealant[5] [6] C. HOT TS
Sprinkler System Weld Sealant[2] >= 1/2" D. HOT TS 

[1] Only products bearing the NSF Mark on the product, product packaging, and/or
    documentation shipped with the product are Certified.
[2] Certified for a maximum use of 2 joints/liter.
[4] Product requires cure of 72 hours at ambient temperature.  Formerly Loctite PST 561 Pipe
    Sealant.
[5] This product is Certified for use as a fitting and pipe sealant.
[6] Maximum use: 50 (1/2") joints per residence (4.5 joints per liter).

Thread Compounds[1]
Loctite® 243 Threadlocker[7] >= 1/2" C. HOT TS
Loctite® 518 Flange Sealant[7] >= 1/2" C. HOT SLT
Loctite® 567[8] [9] C. HOT TC 

[1] Only products bearing the NSF Mark on the product, product packaging, and/or
    documentation shipped with the product are Certified.
[7] Maximum of 21 joints per residence (2 joints per liter).
[8] Formerly Stainless Steel PST 567.
[9] Certified for use as an anode thread sealant in water heater tanks with a maximum
    surface area to volume ratio of 0.08 sq. in./L.

Number of matching Manufacturers is 1
Number of matching Products is 37
Processing time was 0 seconds