Paraplex Resins for Industrial Coatings

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Arline Stone
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1 Paraplex Resins for ndustrial oatings Paraplex Resins! Unique alkydtype polymeric materials! ommonly known as polyester resins! Soft, flexible resins widely used as plasticizers for more brittle filmforming materials such as nitrocellulose, ethylcellulose, polyvinyl chloride and polyvinyl butyral! mpart unusual flexibility, toughness,! Retain these physical properties under severe conditions of exposure! Should be considered in all applications where toughness, flexibility, durability, resistance to abrasion, resistance to water and permanence are of prime importance

2 Summary of haracteristics Product Principle haracteristics and Uses Paraplex RGA2 50% and 80% in nbutyl acetate ompatible with nitrocellulose, ethyl cellulose and polyvinyl butyral. Excellent retention of flexibility on aging. Paraplex RGA7 60% in toluene Excellent flexibility, adhesion and color retention. Used with nitrocellulose for tough, durable metal lacquers. Paraplex RGA8 ompatible with nitrocellulose, ethyl cellulose polyvinyl butyral; softer than Paraplex RGA2; outstanding nonsolvent resin for pigment wetting and outstanding grinding characteristics. Paraplex GA20 80% in MAK or xylene ompatible with nitrocellulose; yields tough and rubbery compositions; highviscosity resins; very resistant to gasoline and aliphatics. Paraplex 5B 80% in toluene Very compatible with nitrocellulose and all types of lacquer resins and plasticizers, good solvent release and alcohol tolerance; excellent fullness and gloss.

3 Product nformation Paraplex RGA2 Description Paraplex RGA2 is an oilmodified azelaic acidtype plasticizing resin that imparts excellent toughness and high tensile strength to nitrocellulose films. Paraplex RGA2 is supplied in either 50 percent solids or 80 percent solids in nbutyl acetate. ompatibility Nitrocellulose, ethyl cellulose, polyvinyl butyral, melamine formaldehyde Attributes Provides excellent flexibility Outstanding durability on outdoor exposure Shows little color change on aging or exposure to sunlight and therefore can be used in clear or lightcolored coatings mparts adhesion to many nitrocellulose finishes used on rubber and other substrates Helps improve adhesion on aging Recommended Usage Levels Ratio percent RGA2 (based on solids) on the nitrocellulose dry weight.

4 Product nformation Paraplex RGA7 60% Description Paraplex RGA7 60% is an oilmodified azelaic acidtype plasticizing resin, cut with toluene to a 60% solids level. Paraplex RGA7 60% provides excellent flexibility, durability and adhesion in nitrocellulose lacquers. ompatibility Lacquers, shellac, dewaxed damar, ester gum, oil, nitrocellulose Attributes Excellent for nitrocellulose lacquers. Provides excellent flexibility. mparts excellent durability. Offers excellent adhesion to metal substrates. Exhibits light color for clear and pale or lightcolored lacquers. Recommended usage levels Ratio percent RGA7 60% (based on solids) on the nitrocellulose dry weight.

5 Product nformation Paraplex RGA8 Description Paraplex RGA8 is a flexible, oilmodified azelaic acid plasticizing resin developed specifically as an allpurpose grinding medium for nitrocellulose lacquers. Paraplex RGA8 is supplied as 100 percent solids. ompatibility Nitrocellulose, castor oils, esters, ethyl cellulose, polyvinyl butyral, melamine formaldehyde, chlorinated rubbers Attributes Developed specifically as an allpurpose grinding medium for nitrocellulose lacquers Low in acid value Excellent pigment wetting and stability characteristics Offers durability, scuff resistance, good flexibility and freedom from spewing in nitrocellulose mparts good toughness, clarity and flexibility in ethyl cellulose Has a pronounced plasticizing action in polyvinyl butyral Recommended usage levels Ratio percent RGA8 (150 typical) (based on solids) on the nitrocellulose dry weight. For other resins, percent.

6 Product nformation Paraplex GA20 Description Paraplex GA20 is an azelaic acidtype polyester containing no modifying oil and is a true solvent for nitrocellulose. Paraplex GA20 is supplied as either 80 percent solids in MAK or 80 percent solids in xylene. ompatibility Nitrocellulose, urea formaldehyde, cellulose acetate proprionate, polyvinyl chloride acetate, polyvinyl butyral Attributes Exhibits high plasticizing efficiency at average temperatures Very tough resin without much flexibility at low temperatures Nonvolatile with excellent heat resistance An excellent compromise between the lowtemperature flexibility characteristics of an estertype plasticizer and the high tensile strength obtainable with resintype plasticizers High resistance to aromatic solvents and gasoline Recommended usage levels Ratio percent GA20 (based on solids) on the nitrocellulose dry weight.

7 Product nformation Paraplex 5B 80% Description Paraplex 5B 80% is a special maleic alkyd polyester. Paraplex 5B 80% imparts flexibility and high abrasion resistance to nitrocellulose lacquer films. ompatibility Nitrocellulose, ethyl cellulose, chlorinated rubber, urea, melamine, castor oil Attributes A pale, tough viscous material mparts an unusual degree of fullness and build to clear nitrocellulose lacquer films Enhances the fullness and gloss of pigmented lacquer films an be used in large proportions in a lacquer without detracting from hardness and resistance to water and alcohol ontributes flexibility and elongation while minimizing shrinkage of nitrocellulose Produces lacquers with good resistance to marring or printing and to solvents Recommended usage levels Ratio percent 5B 80% (based on solids) on the nitrocellulose dry weight.

8 TABLE Film Properties of Paraplex RGA2 With Nitrocellulose Property Paraplex RGA % 1/2 Nitrocellulose (no plasticizer) Tensile strength (psi) nitial After 32 h ultraviolet exposure Percent change 8,420 12,100 10,100 2, Ultimate elongation (%) nitial After 32 h ultraviolet exposure Percent change Gurley stiffness Percent gain at 12 1 Films contain 35 percent Paraplex resin; 65 percent 1/2 nitrocellulose

9 TABLE Spew and olor haracteristics of Nitrocellulose Films1 Spew Test olor Test2 Relative Lack of olor 30 min 30 min 30 min at 250 F at 275 F at 300 F. 30 min at 150 F 30 min at 200 F 30 min at 225 F Paraplex RGA2 OK OK OK Very Slight Spewing 2 3 Raw astor Oil OK Slight Spewed Spewing 1 Discolored 2 Discolored Heavy Body astor Oil OK OK Spewed Spewed 3 4 Plasticizer 1 2 Films contain 50 percent plasticizer; 50 percent 1/2 nitrocellulose. Small numbers better. TABLE Paraplex Plasticizers in Polyvinyl Butyral Stock omposition Paraplex RGA Paraplex RGA(Parts by Weight) 2 8 Polyvinyl Butyral Plasticizer Raw astor Oil haracteristics Tensile (psi) Elongation, % Permanent Set, % Shore Durometer

10 TABLE V Resin ompatibility Other omponents % Paraplex RGA % Paraplex RGA % Paraplex RGA % Paraplex GA % Paraplex 5B ellulose Nitrate (RS½") ellulose Acetate ellulose Acetate Propionate ellulose Acetate Butyrate Ethyl ellulose (10 cps.) Polyvinyl Acetate Polyvinyl hloride Acetate Polyvinyl Butyral hlorinated Rubber (20 cps.) Uformite Dewaxed Damar Refined Shellac Lacquer Linseed Oil Heavy Body astor Oil Paraplex is a registered trademark of Hallstar Uformite is a registered trademark of Reichhold hemicals Ltd.

11 TABLE V Tolerance and Nitrocellulose Solvency Alcohol Tolerance1 Mineral Thinner Tolerance2 Paraplex RGA Partial Paraplex RGA Partial Paraplex RGA True Paraplex GA Slight Paraplex 5B Partial Grade Solvency for Nitrocellulose3 This data indicates the approximate values and are supplied for comparison purposes. 1 Alcohol Tolerance: Number of cc. of 2B alcohol required to cause permanent turbidity in 10 grams of a 50 percent solution of the resin in toluene (Paraplex 5B1 80% in toluene). 2 Mineral Thinner Tolerance: Number of cc. of mineral thinner required to cause permanent turbidity in 10 grams of a 50 percent solution of the resin in toluene. 3 Solvency for Nitrocellulose: Determined by making 5 percent solution of dry nitrocellulose in the resin and allowing to come to equilibrium to determine solubility.

12 TABLE V Solvent Study Paraplex Rga Samples ut 70% in Butyl Acetate ompared to urrent Product RGA2 Exp RGA2 urrent 5B Exp 5B urrent RGA7 Exp RGA7 urrent RGA8 Exp RGA8 urre nt GA20 Exp GA20 urren t % NVM Solvent Butyl Acetate Toluene Butyl Acetate Toluene Butyl Acetate Touene Butyl Acetate None Butyl Acetate None Viscosity PS TBR N/A 33.8 (GH) Est Y U T Z1 Y U E ZZ3 Z2 Z10+ olor (Gardner) Acid Value Specific Gravity WeightGalllon Formulations " Paraplex RGA2 Rubber Lacquer Titanium dioxide 1/2 RS Nitrocellulose Paraplex RGA2 Parts by Weight (Solids Basis)

13 " Paraplex RGA8 Upholstery Fabric oating Roller Mill Grind Parts by Weight (Solids Basis) Pigment Paraplex RGA Mix With RS Nitrocellulose Paraplex RGA Ratio of Paraplex RGA8 to nitrocellulose 1.5/1 Reduce to 50% solids with the following thinner: Ethyl alcohol50%; Ethyl acetate33%; Butyl alcohol17% " Paraplex GA20 Rubber Lacquer Titanium dioxide 1/2 RS Nitrocellulose Paraplex GA20 " Parts by Weight (Solids Basis) Paraplex 5B 80% Book loth oating Roller Mill Grind Parts by Weight (Solids Basis) hrome Green Paraplex 5B 80% Mix With 5 6 RS Nitrocellulose Paraplex 5B 80% Ratio of Paraplex 5B 80% to nitrocellulose 1.5/

14 Reduce with the following thinner: Ethyl acetate Ethyl alcohol Toluene Acetone 33% 33% 32% 5% Furniture Lacquer 1/2 RS Nitrocellulose A801 Light (Union amp) Paraplex 5B 80% The technical information and suggestions for use contained herein are believed to be reliable, but they are not to be construed as warranties, and no patent liability can be assumed. Parts by Weight (Solids Basis)

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Tinley Park, IL 0487 High Temperature Marker Tag This specification is intended to outline the physical and chemical properties of PANDUIT s material for identification purposes. Printable Material Suffixes