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home | Sherwin Products - Penetrant
Sections on this page - Visible
Penetrant products | Fluorescent
Penetrant products Sherwin Incorporated has manufactured
its Dubl-Chek line of liquid dye inspection penetrants and related
products since 1964.
Dubl-Chek products are approved by governing agencies
worldwide, including the US Government, ASME, ASTM, as well as the
prime aerospace
and military contractors and OEM's. Dubl-Chek fluorescent penetrants
are used widely in aerospace, while Dubl-Chek visible penetrants
are used throughout the welding and nuclear power industries.
VISIBLE PENETRANT PRODUCTS
Approved to MIL-I-25135 & AMS-2644
| Visible Penetrants |
| |
| DP-40 |
Nonwater-washable, use with emulsifier or solvent
wipe-off |
| DP-51 |
Water-washable, remove with water or solvent |
| DP-54 |
Water-washable, contains no petroleum distillates,
more acceptable to sewage treatment facilities. Remove with water
or solvent |
| K-017 |
Specially formulated and approved for high temp
applications, such as welds. Use
with Hi-Temp K-019 Cleaner and with D-350 or D-100 Developers. |
| By-Lux |
Dual response: indications are red under normal
light; orange under black light |
| Removers/Cleaners |
|
| |
| DR-60 |
Clear non-chlorinated solvent for pre-cleaning
and penetrant wipe-off. |
| DR-62 |
Similar to DR-60; evaporates more readily |
| K-019 |
Foam cleaner especially formulated for use at
high temperatures. Use with other
Hi-Temp products. Also, use when wide, shallow cracks are suspected |
| Emulsifiers for Visible Penetrants |
|
| |
| ER-85 |
Method B, lipophilic, oil-based. Use with nonwater-washable
penetrants |
| ER-83A |
Method D, hydrophilic, detergent-based, "non-aggressive." Use
after plain water pre-rinse to emulsify nonwater-washable penetrants |
| Developers for Visible Penetrants |
|
| |
| D-100 |
Nonaqueous, "form d," alcohol suspension,
spray application |
| D-106 |
Nonaqueous, "form d," similar to D-100,
evaporates more readily; spray application |
| D-350 |
Approved: use with other Hi-Temp products on heated
surfaces |
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FLUORESCENT PENETRANT PRODUCTS
Approved to MIL-I-25135 & AMS-2644
| Water Washable Fluorescent
Penetrants |
|
| |
| Level/2 |
HM-1 For relatively non-critical work |
| Level 1 |
HM-2D Recommended for magnesium and aluminum casting
with difficult surfaces
HM-220 Free rinsing; use on difficult surfaces. No petroleum distillates
WB-100 Water-based; environmentally friendly. Also shipped as concentrate; user
adds water |
| Level 2 |
HM-3A Versatile, general purpose material; used
extensively on Al and Mg
castings; competitively priced
HM-406 Widely used in aerospace on magnesium, aluminum and titanium castings
and extrusions. More sensitive than HM-3A.
HM-412 - Similar to HM-406, only more sensitive
HM-420 - Free rinsing. Contains no petroleum distillates
HM-602 - Resists over-washing. Contains no petroleum distillates
WB-200 - Water-based; environmentally friendly. Also shipped as concentrate;
user
adds water |
| Level 3 |
HM-430 - High sensitivity; formulated for rough
surfaces
HM-604 - Widely used. Competitively priced. No petroleum distillates. Resists
over-
washing
HM-607 - Similar to HM-604 except slightly more sensitive |
| Level 4 |
HM-704 - Ultra-high sensitivity. Used on smooth
surfaces. No petroleum distillates |
| Nonwater-Washable Fluorescent
Penetrants |
|
| |
| Level 1 |
RC-29 - Competitively priced |
| Level 2 |
RC-50 - Widely used |
| Level 3 |
RC-65 - Also in spray cans |
| Level 4 |
RC-77 - Also in spray cans
RC-88 - Ultra-high
sensitivity; increases visibility of microscopic flaw indications
|
| Emulsifiers for Fluorescent
Penetrants - Methods B & D |
|
| |
| ER-85 |
Method B lipophilic, oil-based, used in post-emulsification
processes |
| ER-83A |
Method D hydrophilic, detergent-based, "non-aggressive," used after
plain-water Pre-rinse, recommended for use with RC-77 on highly critical rotating
parts |
| Cleaners and Removers for
Fluorescent Penetrants - Method C |
|
| |
| DR-60 |
Clear, non-chlorinated solvent for pre-cleaning
and penetrant wipe-off. |
| DR-62 |
Similar to DR-60; evaporates more readily |
| LA-1 |
Alkali-based, hot tank pre-cleaner. Replaces solvent-based
pre-cleaners |
| Developers for Fluorescent
Penetrants |
|
| |
| D-90G |
Dry powder, "form a," excellent surface
cling |
| D-100 |
Nonaqueous, "form d," alcohol suspension,
spray application. |
| D-106 |
Nonaqueous, "form d," similar to D-100,
evaporates more readily; spray application. |
| D-113G.1 |
Water soluble powder, "form b," normally
used with nonwater-washable penetrants |
| D-110A.1 |
Water suspendable powder, "form c." |
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