Enhanced TDS
Identification & Functionality
- Blend
- No
- CASE Ingredients Functions
- Chemical Family
- Country of Origin
- Function
- Binder
- Product Code
- MITM11401
- Single Ingredient
- Yes
- Technologies
- Product Families
Features & Benefits
- CASE Ingredients Features
- Labeling Claims
- Key Features and Benefits
- High gloss and DOI easily achieved
- Excellent dry (including initially after bake) and wet adhesion to a variety of plastics
- Wide formulation latitude and applications
- Favorable formulation cost/performance balance
- Can produce hard films
Applications & Uses
- Application Area
- Coating End Applications
- Compatible Polymers & Resins
- Compatible Substrates & Surfaces
- Markets
- Applications
- Formulation Information
- Optimum application and dry film performance properties of a protective coating depend critically on the proper choice and level of formulation ingredients. The following formulation guidelines are intended to demonstrate the versatility of RHOPLEX® WL-100
- Coalescents and Plasticizers
- The MFFT of RHOPLEX® WL-100 is well above (approx. 48°C) most application temperatures and consequently requires the use of coalescing solvents and plasticizers to form films with optimum physical properties. The type and level of coalescing solvents and plasticizers depend on the application and end use.
- Coalescing solvents found useful in formulations based on RHOPLEX® WL-100 include the partially water- soluble alkyl ethers of propylene and dipropylene glycols. A specific example is dipropylene n-butyl ether (DowanolT™ DPnB) used at about 25% (w/w) based on polymer solids (BOP) when used alone. Substantially reduced levels (max. 10% BOP) of DPnB can be used if a non-volatile water-immiscible plasticizer (see below) is part of the coalescing package. Dowanol DPnB and other partially and completely water-miscible, polymer-phase, (see DB below) coalescing solvents effectively interact and swell RHOPLEX® WL-100 latex particles. Latex particle swelling can provide a useful method of increasing application viscosity. Other examples of alkyl ethers of (di) propylene glycol include propylene glycol n-butyl ether (PnB) and dipropylene glycol n-propyl ether. However, due to the fast evaporation rate of PnB, inclusion of a slower evaporative coalescing solvent or non-evaporative plasticizer may be necessary for optimum film formation.
- To a much lesser degree, the completely water-soluble alkyl ethers of (di)ethylene glycol (e.g., Dowanol DB and EB) provide adequate film formation and require much higher (min. 25% BOP) use levels for good film formation. In general DB (or EB) should be used as part of a coalescing package rather than alone.
- Other coalescing solvents found useful for coatings based on RHOPLEX® WL-100 include the alkyl acetates (n- alkyl or branched) and Texanol™. Although very effective coalescing solvents for RHOPLEX® WL-100, the nearly complete water immiscibility of Exxates™ 800 (and higher alkyl members of the Exxate family) and Texanol do not cause the same extent of latex particle swelling as Dowanol DPnB.
- The use of a "permanent" plasticizer(s) has been found to provide beneficial properties to coatings based on RHOPLEX® WL-100. These include enhanced impact resistance, flexibility, and reduced surface dry time. Reduced surface dry time can be important in applications involving recoat and gloss and film clarity retention after exposure to water. Permanent plasticizers found useful in formulations based on RHOPLEX® WL-100 include Santicizer™ 160, dibutyl phthalate, and KP-140™.
- Pigments, Dispersants, Wetting Aids
- The choice and level of pigments, dispersants, and wetting aids can have a profound effect on the appearance and barrier properties of cured films. RHOPLEX® WL-100 can be formulated into coatings with a wide range of pigment levels (PVC) and types, including both inert and reactive pigments. The stability of RHOPLEX® WL-100 to shear allows the formulator, in some cases, to prepare pigment dispersions in the presence of resin. This potential advantage allows for paints with increased volume solids.
- TAMOL™ 681 and TAMOL™ 165 pigment dispersants at levels of approximately 0.75% to 2% on pigment solids have been found to produce coatings with a good balance of high gloss and good barrier properties. Pigment wetting, non-ionic, low-foaming surfactants, such as Triton™ CF-10, IgepalT™ CTA-639W, and Surfynol™ 104A, have been used successfully to prepare pigment dispersions at levels of approximately 1 to 5 lbs./100 gal. of formulation.
- Defoamers
- Various surface active ingredients used in waterborne paint formulations, such as dispersants, wetting aids, latex surfactants, and some coalescents may generate or stabilize foam during the manufacture or application of paint. In general, a defoamer should be evaluated for its effectiveness and long-term efficacy in each formulation, since the type and level of the surface-active ingredients will vary. Examples of defoaming agents found useful in formulations based on RHOPLEX® WL-100 resin are BykTM-002, Byk-024, Tego Foamex™ 1488, and Dehydran™ 1620.
- Viscosity Control and Thickening Agents
- In some cases, paints based onRHOPLEX® WL-100 resin may not require the use of an external thickener. As mentioned previously, glycol ethers such as Dowanol DPnB and DB swell RHOPLEX® WL-100 latex particles, increasing their effective volume and increasing paint viscosity. This self thickening is highly dependent on formulation volume solids with higher volume solids showing the greatest response. The use of ammonia or other amines can further increase viscosity. However amines that evaporate slower than ammonia can reduce dry time and prolong or increase film water sensitivity.
- High molecular weight HEUR thickeners, such as ACRYSOL RM-12W are recommended for thick film applications to control sagging and mud cracking. Depending on other formulation ingredients, the rheology modifier level can vary from 1 to 20 lbs./100 gal. of paint with high levels of coalescent and surfactants requiring higher levels of thickener. Other HEUR thickeners found useful in formulations based on RHOPLEX® WL-100 include ACRYSOL RM-2020NPR for increasing viscosity at high shear and ACRYSOL RM-8W for increasing viscosity at medium shear rates.
Properties
- Physical Form
Packaging & Availability
- Packaging Type
Principal Information
- Group Principal Number
- S000005
- Principal
Other
- Appearance
- Milky white liquid
- Color (SDS)
- Milky white
- Item Number
- Odor (SDS)
- Ammonia
- Protect from Freezing
- Yes
- Temperature Control
- Yes
- USA/DOT UN Number
- Not Applicable
- Chemical Properties
Value Units Test Method / Conditions pH 8.5-9.5 - - Material Composition
Value Units Test Method / Conditions Solid Content 49.0-50.0 - - Physical Properties
Value Units Test Method / Conditions Bulking Value 0.115 - dry basis Density 8.73 lb/gal lb/gal wet Film Forming Temperature 48.0 °C °C Storage Temperature 34.0-120.0 °F °F Viscosity 50.0-200.0 cPs cPs Brookfield Viscometer - SDS Physical and Chemical Properties
Value Units Test Method / Conditions Boiling Point (SDS) 100.0 °C °C Evaporation Rate (SDS) max. 1.0 % % Butyl acetate = 1 Melting Point (SDS) 0.0 °C °C Relative Vapor Density (SDS) max. 1.0 - Air = 1 Specific Gravity (SDS) 1.05 - Water = 1 Vapor Pressure (SDS) 17.0 - at 20°C Viscosity (SDS) max. 500.0 - pH (SDS) 8.0-9.0 - - Shelf Life & Stability
Value Units Test Method / Conditions Shelf Life 547.0 -