Product Comparisons

Solvent-Based vs Water-Based Acrylic Emulsions for Middle East Weather

The shift from solventborne to waterborne acrylic coatings is one of the most significant technology transitions in the GCC paint market. Driven by VOC regulations, SASO compliance requirements, and the sustainability demands of Vision 2030 projects, waterborne acrylics are now the dominant choice for architectural applications from Riyadh to Dubai. But are they always the right choice? And what are the performance differences that formulators and specifiers need to understand? This guide compares solventborne and waterborne acrylic systems across the parameters that matter most in GCC conditions.

Side-by-Side Performance Comparison

Property	Solventborne Acrylic	Waterborne Acrylic	GCC Relevance
UV resistance	Excellent	Excellent (pure acrylic) / Good (SA)	Critical — GCC UV is among highest globally
Colour/gloss retention	Very good	Very good (pure acrylic)	Important for façade paints; 5+ year durability expected
Flexibility / crack bridging	Good	Excellent (low-Tg acrylic)	Saudi render cracking common; flexibility is key
Water resistance	Excellent	Good–Very good (depends on formulation)	Coastal UAE and KSA — important for exterior
Application in heat (40–50°C)	Challenging — rapid flash-off	Better — water evaporation is more controlled	GCC summer application
Application in humidity (>80% RH)	Good	Requires careful timing	UAE coastal nights May–October
VOC content	High (150–400 g/L typical)	Low (15–80 g/L)	SASO GSO 1914 compliance
Odour	High (solvent smell)	Low to none	Occupied building applications
Drying time at 40°C	Fast (30–60 min surface dry)	Very fast (15–30 min — can be too fast)	GCC summer application challenge
Minimum film temperature	Not applicable	Critical — don't apply below 5°C	Not typically an issue in GCC
Cost per litre	Similar to waterborne	Similar to solventborne	Waterborne premium largely eliminated

When to Specify Each System for GCC Applications

Choose waterborne acrylic for:

• All interior architectural applications in Saudi Arabia and UAE — VOC compliance, odour, and occupant health all favour waterborne.
• Exterior façade and render coatings on residential and commercial buildings — modern pure acrylic emulsions match or exceed solventborne performance at lower VOC.
• NEOM, Red Sea Project, and other sustainability-specified projects — solventborne is typically excluded or heavily restricted.
• Any application in occupied or partially occupied buildings — zero solvent odour.

Choose solventborne acrylic for:

• Specific industrial applications where maximum chemical or abrasion resistance is required and waterborne equivalents cannot meet the specification.
• Maintenance coating over existing solventborne systems where intercoat compatibility is a concern.
• Applications in extremely high humidity where waterborne drying is too slow — though this is increasingly rare with modern waterborne formulations.

Formulation Differences — Key Raw Material Changes

Moving from a solventborne to waterborne acrylic formulation requires these key raw material adjustments:

• Binder: Replace solventborne acrylic resin solution with waterborne acrylic emulsion (50–55% solids). Select Tg appropriate for application (exterior: 5–15°C; interior: 15–25°C).
• Coalescent: Add low-VOC coalescent (Texanol, 1–2%) to assist film formation below MFT during cool weather. Not needed for Saudi summer application.
• Thickener: Replace solvent-phase rheology modifier (polyamide wax) with HASE and/or HEC thickener for waterborne system viscosity control.
• Dispersant: Switch from polymeric dispersants designed for organic phase to waterborne-compatible dispersants (sodium polyacrylate or polyether-based).
• Defoamer: Switch to waterborne-compatible defoamer (silicone emulsion or mineral oil emulsion).
• Biocide: Add in-can biocide (BIT/MIT) and dry-film biocide (DCOIT or IPBC) — not needed in solventborne systems where solvent acts as in-can preservative.

Sourcing Waterborne Acrylic Raw Materials from Raykem

Raykem supplies styrene-acrylic and pure acrylic emulsions to paint manufacturers across the UAE and Saudi Arabia. Our monomer and specialty chemical range supports both emulsion polymer synthesis and specialty coating formulation. Contact our technical team for emulsion grade selection, Tg recommendations, and formulation support for GCC exterior applications.