ChemLine
784/32
Superior
Chemical Resistance Exceptional Toughness
Description
ChemLine
784/32
delivers significantly improved product performance and anti-corrosion
resistance. ChemLine 784/32
is formulated with new patented breakthrough high functionality oxirane polymer.
Designed and engineered with 28 functional groups per molecule, this bridged aromatic backbone structure when polymerized translates into 784 crosslinks.
Siloxirane 2032 introduced in 1992, delivered 5 functional groups (25 crosslinks), far surpassing epoxies and vinylesters which only have 2 functional groups (4 crosslinks).
ChemLine 784/32's
Higher Cross-Link Density Means:
•
Higher Chemical Resistance
• Higher
Heat Resistance
• Higher
Toughness
• Higher
Resistance to Abrasion
ChemLine 784/32 is a high functionality, two component thermoset polymer coating. When cured, ChemLine 784/32 high cross-link density is unlike other coatings. ChemLine 784/32 cross-links predominately through an ether (carbon-oxygen-carbon) linkage. This eliminates high concentrations of hydroxyl groups (found in vinylesters) which are subject to hydrolysis and acid attack.
ChemLine 784/32 can be ambient cured over time or low temperature forced air cured for immediate service.
ChemLine 784/32's
Provides Superior Chemical Resistance to:
•
98% Sulfuric Acid
•
37% Hydrochloric Acid
•
50% Sodium Hydroxide
•
Most acids, alkalies, and solvents
•
Methanol
•
Methylene Chloride
•
Acetic Acid
Product
Highlights
Superior Corrosion Resistance, Exceptional Toughness
• Superior bonding qualities
• Applied to pitted corroded steel
• Maximum versatility; product cycling
• Ambient or low temperature force cure
• Very low VOC - 108 grams/liter (0.9 lbs. per gallon)
• Non-permeable
• Steam cleanable
• Resists hydroblasting
• Repairable
• Sunlight resistant
• Complies with FDA 21 CFR 175.300 for food handing
• High impact resistance
• Wear and abrasion resistance
Industry Applications
• Chemical
Processing
Tanks, Vessels, Hazardous Waste, Secondary Containment, Chemical Plant
Floors, etc.
• Paper & Pulp
Digesters, Black Liquor Tanks, Bleaching, etc.
• Mining
Acid Tanks, Scrubbers, etc.
• High Technology
Clean Rooms, Floors, etc.
• Power Generation
FGD Systems, Ducts and Stacks, etc.
• Steel
Pickling Tanks, Acid Storage, Acid Waste Neutralization, etc.
• Waste Water
Tanks, Clarifiers, Flocculation Basins, Neutralization Chambers, Concrete
Containment, etc.
• 28 functionality
• Very small openings between groups
• Majority of crosslinks are through Ether (C-O-C) bonds. Ether bonds are one
of the strongest
bonds in chemistry. Ether bonds give flexibility with chemical resistance.
• No Ester groups
| Physical Properties | |
| Bend Test (3/4" Diam.) (ASTM D522-88) | 270º |
| Impact Test (ASTM D2794) | 130 in. lbs |
| Pull of Strength (ASTM D4541) | 2800-3100 p.s.i. |
| Hardness Test (Barcol) (ASTM D2583) | 78-80 |
| Tober
Abrasion (wgt. loss)
CS-17, 1000g. load, 1000 cycles (ASTM D4060-90) |
3.92 mg/1000 cycles |
| Water Absorption (30 days @ 88ºF) (ASTM D570) | 0.89% |
| Typical Properties | |
| Color (Normal) | Gray/Red/White |
| V.O.C. Level | 108 grams/L (0.9 lbs. per gal). |
| Lead/Chromate Content | Zero |
| Pot Life | 60 Minutes @ 24ºC (75ºF) |
| Viscosity Reduction | Reduce with Toluene or Xylene |
| Flash Point | 53ºC (127ºF) |
| Solids by Volume | 89.6% (±3%) |
| Solids by Weight | 95.5% (±2%) |
| Theoretical Coverage | 120
sq.ft./gallon @ 12 mills DFT
(2.9 sq.m./L @ 300 microns DFT) |
| Recommended DFT | Average;
Steel: 12
mils (300 microns)
Concrete: 20 mils (500 microns) |
| Shelf Life | 12 months |
A History of
Performance
For more than a decade Siloxirane (now ChemLine) has
withstood the tremendous stresses and extremes of chemical attack and abrasive
wear. Siloxirane coatings and linings have been proven worldwide under the most
aggressive chemicals to handing hot pipelines in subfreezing temperatures,
Siloxirane coatings have a history of success. Based on this experience, the
development of ChemLine 784/32
represents a Quantum Leap in chemical resistant polymer coatings.
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