FINE-CLAD M-8930 Product Code: Carboxylated Polyester

Transcription

1 March 4 FINE-CLAD M-893 Product Code: Carboxylated Polyester DESCRIPTION FINE-CLAD M-893 is a carboxyl polyester designed to cure by triglycidyl isocyanurate (TGIC) crosslinkers for standard weathering with excellent physical properties. APPLICATIONS Automotive trim Exterior metals Outdoor furniture Lawn & garden General metals FEATURES Good exterior durability Low reactivity Excellent flow Good overbake resistance PROPERTIES Appearance Solid Clear Granules Acid Value, mg KOH/g 35 Brookfield Viscosity at C, cps 755 Gardner, Color, Solution 3 max. Glass Transition Temperature, C 65 STORAGE FINE-CLAD M-893 resin is supplied in 5-kg bags. Store below 5 C in a dry place to ensure a useful shelf life of at least one year. Read the FINE-CLAD M-893 Material Safety Data Sheet before handling, storing, or using this product. Dust may be irritating and may present fire and explosion hazard. Use only with adequate ventilation and avoid breathing dust. Avoid contact with eye or skin.

2 Study Title Description Page # General Purpose Using an unfilled white powder, data illustrates ease of acquiring very good physical properties. 3 Overbake Resistance Data shows overbake properties compared to competitive material. 4 South Florida Weathering Natural weathering data shows excellent gloss retention. 5

3 GENERAL PURPOSE FORMULATION Scope: An unfilled white formulation was developed and tested for physical properties. Results: Data shows that FINE-CLAD M-893 has very good physical properties when properly cured at suggested film thickness of 35-5µ. Tips: 1. The use of Synthron Actiron (tetra butyl ammonium bromide) will allow for faster curing properties. The usage level is dependent upon desired cure schedule. Per 1 Parts Binder Binder 1 Gram Formula 7. TGIC Crosslinker, Araldite PT-81 (1) Binder Subtotal Benzoin, Uraflow B () Flow Additive, Modarez MFP-V (3) Titanium Dioxide, Ti-Pure R-96 (4) Subtotal Total 1. Extrusion: W & P ZSK-3 twin-screw: 9 C/8 C, (Zone #1/Zone #), screw speed: 5 rpm Classification: mesh Suppliers: (1) Vantico, () GCA Chemicals, (3) Synthron, (4) DuPont Minerals Pigments COATING PERFORMANCE Test Data FORMULATION Bake Schedule 4 C Film Thickness 35-5µ, B-1 Panels Gloss /6 83/95 PCI Smoothness (1) 6 Crosshatch Adhesion 1 % Pencil Hardness H Solvent Cure Test () Partial / Full Cure Gel C, seconds (3) 1 Gardner Impact, In.-Lbs. Forward/Reverse 16/16 Pellet Flow (4) 76 Test Method Notes (1) PCI Flow Rating 1-1 (1=best) () PCI Test Method #8A (3) PCI Test Method #6 (4) PCI Test Method #7 3

4 OVERBAKE STUDY Scope: A robust starting formulation for a standard white, unfilled TGIC was developed and tested for yellowing properties against competitive polyester cured with TGIC. Results: With an initial bake schedule of 1 minutes at 4 C, the Delta b value of FINE-CLAD M-893 in overbake schedules at a temperature of 5 C is better than a competitive p olyester resin in white powder coatings. Tips: 1. The use of Dover Dovernox 911 at.5 % will help to achieve excellent film integrity and non-yellowing properties when curing at temperatures between 5 C-5 C.. Replacing Benzoin with Troy Powdermate 54 DG at.5% will help to decrease yellowing during initial bake. 1 Parts Binder Binder 1 Gram 93. Competitors PE/Hybrid TGIC Crosslinker, Araldite PT-81 (1) Binder Subtotal Degassing, Powdermate 54 DG () Flow Additive, Modarez MFP-V (3) Titanium Dioxide, Ti-Pure R-96 (4) Subtotal Total Extrusion: W & P ZSK-3 twin-screw: 9 C/8 C, (Zone #1/Zone #), screw speed: 5 rpm Classification: mesh Suppliers: (1) Vantico, () Troy Corporation, (3) Synthron, (4) DuPont Minerals Pigments Reference: Electric Oven "b" Value Overbake Gas Oven "b" Value Overbake "b" Value C Overbake Time (hrs) M-893 Competitive PE/TGIC "b" Value M-893 Competitive PE/TGIC C Overbake Time (hrs) 4

5 SOUTH FLORIDA WEATHERING FORMULATION Scope: A white, unfilled formulation based on FINE-CLAD M-893 was developed and tested in South Florida, using a superdurable TGIC powder as a positive control. Weathering test data is outlined for a selected bake schedule. Results: South Florida weathering data illustrates the excellent gloss retention properties obtained using FINE-CLAD M-893. The superdurable TGIC control had higher gloss retention as expected, although the M-893-based powder still retains approximately 7% of its gloss after years of exposure. Per 1 Parts Binder Binder 1 Gram Formula 7. TGIC Crosslinker, Araldite PT-81 (1) Binder Subtotal Benzoin, Uraflow B () Flow Additive, Modarez MFP-V (3) Titanium Dioxide, Ti-Pure R-96 (4) Subtotal Total 1. Extrusion: W & P ZSK-3 twin-screw: 9 C/8 C, (Zone #1/Zone #), screw speed: 5 rpm Classification: mesh Suppliers: (1) Vantico, () GCA Chemicals, (3) Synthron, (4) DuPont Minerals Pigments Reference: Gloss Retention - South Florida Exposure % Gloss Retention Super-Durable TGIC FINE-CLAD M-893 Total Exposure Time (yrs) 5