Dr E. Ramanathan PhD | WhatsApp: 9444929163

Quick-Drying Aerosol White Acrylic Paint (Without Nitrocellulose)
< 60 sec drying time, solvent-based, for aerosol use

Interactive Lab Batch ticket for qd aerosol white acrylic paint (without nitrocellulose)

SaitechAI | Lab Trial Batch Ticket — Wax-free, Dissipating, Recoatable White

Lab Trial Batch Ticket — QD Acrylic Aerosol White Paint

SaitechAI • For internal lab use

Batch Size (kg) Batch No. Date Operator

Component	Function	% w/w	Theoretical Qty (kg)	Actual Qty Added (kg)
Dianal BR116 (50% in acetone)	Thermoplastic acrylic binder	35.000
Titanium Dioxide	Opacifying pigment	20.000
Isopropyl Alcohol	Solvent / carrier	6.000
Butyl Acetate	Solvent / flow control	5.000
Acrylic Additives	Flow / leveling aid	2.000
Cobalt Octoate	Drying catalyst	1.000
Propellant (LPG/Hydrocarbon)	Propellant	30.000
Total			0.000	0.000
Variance (Actual − Theoretical, kg)			0.000

Note: Totals exclude container rinse and process losses; acceptable variance typically ≤ ±0.5% for lab trials.

Enter your actual quantity added, save as print pdf and send it to the consultan for his review.

Item No	Raw Material	Solid % Formula	Solution % Formula
1	Dianal BR116 (50% in acetone)	17.5%	35.0%
2	Titanium Dioxide	20.0%	20.0%
3	Isopropyl Alcohol	6.0%	6.0%
4	Butyl Acetate	5.0%	5.0%
5	Acrylic Additives	2.0%	2.0%
6	Cobalt Octoate	1.0%	1.0%
7	Propellant (LPG/Hydrocarbon)	0.0%	30.0%

Process Details

Instruction

Steps:

Premix Phase:

Blend Dianal BR116 Resin with equal quantity of mixture of solvents as per the ratio given in the formula (acetone, isopropyl alcohol, and butyl acetate).

Add dispersing agent (alphox 200)

Gradually add Titanium Dioxide and mix to ensure uniform dispersion.

Milling Phase (if necessary):

Mill the pigment mixture for proper dispersion.

Additives Phase:

Add flow control agents, antifoam agent and cobalt octoate (fast-drying agent).

Pressurizing Phase:

Fill the mixture into aerosol cans and add 20-30 kg of propellant.

Final Quality Check:

Ensure that the viscosity is within the range of 30-40 seconds on Zahn #2 cup.

Perform a spray test to confirm smooth application and rapid drying.

Adjust the exact proportions based on desired gloss, finish, and specific drying time adjustments.

Key Points:

Drying Time:
- Touch dry: 45–60 sec
- Hard dry: ~8–12 min
Gloss: Medium to high depending on TiO₂ grade and milling
Adhesion: Excellent on primed metal and plastic (can add adhesion promoter if needed)
Fineness Requirement: <10 µm (7+ Hegman)
Use of Nitrocellulose: Avoided — relies solely on thermoplastic acrylic film formation

Note: Alternative version with matting agent, anti-yellowing stabilizer, or corrosion inhibitor for white-on-metal applications is available on request.

Standard Operating Procedure (SOP): Quick-Drying Acrylic White Aerosol Paint (No Nitrocellulose)
Process: Premix → Attritor Milling → Make-up → QC → Aerosol Filling

1. Premix Stage

Objective: Wetting and dispersion of pigment into resin solution.

Equipment: High-speed disperser or Cowles dissolver
Procedure:
1. Charge Plexigum P28/P55 into stainless steel premix tank.
2. Add Dispersing agent (DisperBYK-111).
3. Start agitation (500–800 rpm).
4. Slowly add Titanium Dioxide under high-speed mixing.
5. Add partial solvents (50% xylene + toluene) to reduce viscosity.
6. Continue mixing for 15–20 minutes until uniform paste is formed.
7. Transfer to attritor mill for grinding.

2. Attritor Milling Stage

Objective: Achieve fine dispersion (<10 µm grind, 7+ Hegman)

Equipment: Attritor mill (10 HP horizontal or vertical)
Milling Media: Alumina Balls, 2–3 mm diameter
Charging Ratios:
- Milling media to chamber volume: 65–70% by volume
- Premix base to chamber volume: 30–35% by volume
- Weight ratio (media:premix): ~2.5:1
RPM: 200–400 rpm (depending on attritor model)
Milling Time: 45–60 minutes
Temperature Monitoring:
- Monitor with inline thermometer
- Maintain <45°C (cooling jacket or intermittent milling if required)
End Point: Grind fineness 7+ Hegman
Discharge: Filter through 100 mesh steel screen into make-up tank

3. Make-Up Stage

Objective: Adjust viscosity, flow, and final composition

Equipment: Low-speed mixer tank
Procedure:
1. Add milled base into make-up tank.
2. Add remaining solvents (acetone, butyl acetate, xylene, toluene, isobutanol).
3. Add BYK-066N (defoamer), BYK-306 (flow aid), optional silicone additive.
4. Stir for 10–15 minutes at 400–600 rpm.
5. Measure and adjust:
  - Viscosity: 10–20 sec Ford B4 cup
  - Specific gravity: ~0.90–0.95 g/cm³ (depends on solvent balance)
6. Filter through 200 mesh SS filter before filling line.

4. Quality Control Tests

Parameter	Method	Spec
Grind Fineness	Hegman Gauge	≥7 NS (≤10 µm)
Viscosity	Ford Cup B4 @ 25°C	17–20 sec
Specific Gravity	Pycnometer @ 25°C	0.90–0.95
Drying Time	Touch dry @ 25°C, 50% RH	≤60 seconds
Spray Pattern	Spray test on metal panel	Uniform fan
Gloss (optional)	Gloss meter @ 60°	60–80 GU

5. Aerosol Filling Stage

Objective: Fill paint and propellant into cans safely and accurately

Can Type: 400 ml tinplate aerosol can
Valve: Standard spray valve with 0.4 mm orifice
Filling Ratio (by volume):
- Paint concentrate: 65–70% (~260–280 ml)
- Propellant (LPG or DME): 30–35% (~120–140 ml)
Gas Pressure (post-filling):
- Target: 3.5 to 4.5 bar @ 25°C
Procedure:
1. Weigh each can before filling: tare weight noted.
2. Fill filtered paint concentrate.
3. Crimp valve and inject propellant using automated or semi-auto gasser.
4. Shake cans mechanically for 30 sec to homogenize.
5. Weigh filled can and confirm fill weight matches batch sheet.
6. Leak test in water bath or pressure chamber.
7. Spray test 1 can per 50 units for spray quality and drying test.

Raw Material Specifications

Dianal BR116 Resin

dianal br resin Download

Recommended Pigment-Binder Ratios (by weight)

Pigment Type	Examples	Typical P/B Ratio (by weight)	Remarks
White Pigments	Titanium Dioxide (TiO₂)	0.5 – 1.0 : 1	High loading needed for opacity; commonly 0.6–0.8 for gloss coatings
Black Pigments	Carbon Black	0.05 – 0.25 : 1	Very high tint strength; low P/B sufficient
Red Oxides	Red Iron Oxide	0.3 – 0.6 : 1	Moderate strength, good UV resistance
Yellow Oxides	Yellow Iron Oxide	0.3 – 0.5 : 1	Good weatherability and coverage
Organic Reds & Yellows	PR 122, PY 74, etc.	0.2 – 0.4 : 1	Strong tint strength; used at low levels; expensive
Phthalo Blue / Green	PB 15:3, PG 7	0.1 – 0.25 : 1	Very high tinting strength; disperses finely; lower P/B preferred
Extenders / Fillers	Talc, CaCO₃, Barytes, Clay	0.5 – 2.0 : 1	Used to reduce cost, control gloss, improve rheology
Aluminum / Metallics	Aluminum Paste, Bronze Powder	0.3 – 0.6 : 1	Depends on flake size; excessive binder dulls metallic effect
Pearlescent Pigments	Mica-based pigments	0.2 – 0.5 : 1	Requires special orientation control for best visual effect
Zinc Oxide	Active pigment in corrosion primers	0.3 – 0.6 : 1	Opacity and anti-corrosion combined

🎯 Key Guidelines:

Higher P/B ratios → better opacity but reduced gloss, flexibility, and scrub resistance.
Lower P/B ratios → better flow, gloss, and film integrity but may reduce hiding power.
For high-gloss finishes, P/B should be ≤0.7.
For primers and matt finishes, higher P/B is acceptable.

✅ How to Calculate Pigment-Binder Ratio (P/B)

The Pigment-Binder Ratio (by weight) is calculated using the formula:

Note: You have to consider the solid content of the binder only.

🧮 Step-by-Step Example

Let’s say you have a 10 kg formulation with the following components:

Component	Type	Weight (kg)
Titanium Dioxide	Pigment	1.5
Carbon Black	Pigment	0.2
Talc (Extender)	Pigment	1.0
Dianal BR116 Resin	Binder	3.0
Other Additives	Neither	2.3
Propellant (LPG)	Neither	2.0
Total		10.0

🧾 Step 1: Total Pigment Weight

✅ Final Answer:

Pigment-Binder Ratio = 0.9 : 1

This means for every 1 kg of binder, 0.9 kg of pigment is used

QD Acrylic Aerosol Black Paint Formulations

🎯 Scaled Formula for 300 g Batch:

300 g formula for quick-drying acrylic black aerosol paint

Raw Material	Weight (g)
Dianal BR116 (50% in Acetone)	150.00 g
Carbon Black	8.57 g
Isopropyl Alcohol	12.86 g
Butyl Acetate	12.86 g
Xylene	21.43 g
Acrylic Additives	8.57 g
Cobalt Octoate	2.14 g
Alphox 200 (Surfactant)	0.86 g
Leveling Agent	0.86 g
Defoamer	0.43 g
Propellant (LPG/Hydrocarbon)	81.43 g

✅ Total = 300.00 g

This formula maintains the correct ratios for flow, drying (<3 min), and sprayability while avoiding dry spray issues.

🧪 Standard Operating Procedure (SOP) – Quick-Drying Acrylic Black Aerosol Paint

🔹 1. Dissolving Dianal BR116 (Resin Solution Preparation)

Raw Material: Dianal BR116 (50% solid in Acetone)
Step:
- Weigh 150.00 g of Dianal BR116 solution.
- Stir with a high-speed disperser at 200–300 rpm until a clear, homogeneous solution is obtained (if resin is supplied solid, pre-dissolve in acetone to 50% solid content).
- Ensure no gel particles remain.

🔹 2. Premix Phase

Add and Mix the Following into the resin solution:
- Carbon Black: 8.57 g
- Alphox 200 (Surfactant): 0.86 g
- Acrylic Additives: 8.57 g
Mixing:
- Use high-speed disperser (800–1000 rpm) for 10–15 minutes to wet out the pigment and additives.

🔹 3. Grinding (Dispersion)

Transfer the premix into a bead mill or use a laboratory high-speed disperser with grinding media (zirconia beads 0.5–1.0 mm).
Continue dispersing at 1500–2000 rpm for 30–45 minutes or until desired fineness is achieved.

🔹 4. Grind Check

Use a Hegman gauge to check pigment dispersion.
Target fineness: <15 µm (minimum Hegman 6–7).
If coarse particles are seen, continue grinding for another 15–20 minutes and recheck.

🔹 5. Discharge

Remove the grinding media by filtering or using a magnetic bar (if applicable).
Transfer the dispersion to a clean vessel.

🔹 6. Make-Up Additions

Add the following under slow stirring:

Isopropyl Alcohol: 12.86 g
Butyl Acetate: 12.86 g
Xylene: 21.43 g
Cobalt Octoate: 2.14 g
Leveling Agent: 0.86 g
Defoamer: 0.43 g

Mix slowly for 5–10 minutes to ensure homogeneity.

🔹 7. Viscosity Adjustment

Check viscosity using a Zahn Cup #2 or Ford Cup #4.
Target: 30–40 seconds (Zahn #2) or 60–90 sec (Ford #4).
Adjust viscosity using small amounts of Xylene or Butyl Acetate as needed.

🔹 8. QC Testing

Perform the following tests:

Viscosity: As above
Spray Test: Check flow, atomization, and dry film
Drying Time: Surface dry in <3 min (record with stopwatch)
Appearance: Smooth, gloss, no dry spray or haze
Fineness: Hegman >6

🔹 9. Filling in Aerosol Bottle

Fill paint concentrate (~218.57 g) into a clean, dry aerosol can.
Pressurize with 81.43 g of propellant (LPG or hydrocarbon).
Crimp the valve and check for leaks.
Shake well before use.

🏁 Batch Summary

Total batch size: 300 g
Paint concentrate: 218.57 g
Propellant: 81.43 g
Target drying: <3 minutes
Application: Smooth, fast-drying aerosol finish

In the context of your quick-drying acrylic aerosol paint, acrylic additives refer to performance-enhancing materials used alongside the main acrylic resin (Dianal BR116) to fine-tune paint properties such as flow, leveling, adhesion, gloss, and film integrity.

✅ Common Types of Acrylic Additives and Their Functions:

Type	Function	Examples
Flow and Leveling Agents	Improve surface smoothness, eliminate brush/roller/spray marks	BYK-310, Tego Flow 380
Anti-cratering Agents	Prevent pitting or craters on the surface during drying	Modaflow, Additol XL 480
Anti-blocking Additives	Prevent painted surfaces from sticking to each other	Acrylic micro-powders (e.g., HDPE wax)
Gloss Modifiers	Adjust gloss level (matt to high gloss)	Silica-based matting agents
Adhesion Promoters	Improve bonding to metal, plastic, or glass substrates	Acrylic copolymers with polar groups
Anti-settling Agents	Keep pigments evenly suspended	Polyacrylate dispersants
Coalescing Aids	Help film formation at ambient temperature	Texanol, DPM, EB (limited use in aerosols)
Crosslinking Agents	Improve hardness and chemical resistance (optional)	Carbodiimide-modified acrylics

🔍 In this Formula (2.0% by weight):

The “Acrylic Additives” used at 2.0% could be a blend of:

A flow/leveling agent (0.5–1%)
An adhesion promoter (0.5%)
A dispersing agent or anti-settling additive (0.5–1%)

This can be supplied as:

A commercial multi-functional additive package
Or individual additives measured and blended in-house

✅ Practical Recommendation:

Use a pre-formulated additive blend like:

BYK-092 (for flow and defoaming)
Tego Twin 4100 (leveling and slip)
Additol XL 480 (universal flow additive)

Here are recommended acrylic additives from top suppliers that align well with your quick-drying aerosol acrylic paint needs—targeting flow, leveling, pigment stability, and adhesion, all while maintaining compatibility with Dianal BR116.

✅ Recommended Additives for Acrylic Aerosol Paint

Additive Name	Supplier	Function	Suggested Dosage
BYK-310	BYK	Flow & leveling for solvent-based systems	0.2–1.0%
BYK-9076	BYK	Wetting/dispersing agent for carbon black	0.3–1.0%
Tego Flow 375 / 380	Evonik	Acrylic leveling additive for spray paints	0.2–0.5%
Tego Twin 4100	Evonik	High-end slip and anti-crater additive	0.1–0.5%
Additol XL 480	Allnex	Universal flow, gloss, and recoatability enhancer	0.3–1.0%
Efka 3777	BASF	High-performance dispersant for carbon black	0.3–0.7%
Modaflow Resin 3000	Lubrizol	Surface flow and leveling enhancer	0.2–0.5%

🔧 Typical Acrylic Additive Package for Your Formula (2.0%)

For your 300 g batch, you can use:

BYK-310 – 0.6 g
Tego Flow 380 – 0.6 g
BYK-9076 – 0.8 g
(Total = 2.0 g)

📌 Notes:

These additives are all compatible with Dianal BR116-based solvent systems.
Avoid silicone-based additives if recoatability or overpainting is required.
Always pre-dilute viscous additives in xylene or butyl acetate before adding.

Local Suppliers in India

Here are trusted local suppliers in India where you can source acrylic paint additives (BYK, Evonik, Allnex, BASF, Lubrizol, etc.) suitable for your quick-drying aerosol formulations:

🏭 1. BYK Additives (India Representative)

Distributor: Addpol Chemie India Pvt Ltd

Website: www.addpol.com
Location: Mumbai
Products: BYK-310, BYK-9076, BYK-333, defoamers, dispersants
Contact: sales@addpol.com | +91-22-25005017

🏭 2. Evonik India Pvt Ltd

Product Line: Tego Flow, Tego Twin additives

Website: corporate.evonik.in
Location: Mumbai / Pan India
Distributors:
- Chemi Enterprises LLP, Mumbai
- Prakash Chemicals, Gujarat
Contact: info-india@evonik.com

🏭 3. Allnex India Pvt Ltd

Products: Additol XL 480, flow additives, co-binders

Website: www.allnex.com
Contact Distributor:
- KK India Petroleum Specialities, Mumbai
- Raj Petro Specialities Pvt Ltd, Chennai
Contact: info@allnex.com

🏭 4. BASF India Ltd

Products: Efka dispersants, anti-settling agents

Website: www.basf.com/in
Contact Distributor:
- Global Chemicals, Mumbai
- Chemi Enterprises LLP, Chennai
Contact: customer-care-india@basf.com

🏭 5. Lubrizol Advanced Materials India

Products: Modaflow Resin 3000, flow & leveling agents

Website: www.lubrizol.com
Distributor: Spectrum International, Mumbai
Contact: lubrizol-india@lubrizol.com

📞 Tip for Procurement:

Specify your end-use (e.g., “aerosol acrylic paint for metal/plastic”) to receive appropriate grade.
Ask for sample packs (100–250 g) for lab trials.
Request TDS + MSDS with every quote.

Case Studies

Here is a list of common issues encountered during the formulation, filling, and application of aerosol acrylic paints, along with their probable causes and recommended remedies:

✅ 1. Dry Spray (Powdery Finish)

Cause	Remedy
Fast solvent evaporation (e.g., too much acetone)	Add 3–5% slower solvent like xylene or butyl acetate
High spray distance / ambient temperature	Reduce spray distance (20–25 cm); spray in cooler conditions
Low propellant pressure or poor atomization	Adjust propellant ratio and ensure nozzle is correct

✅ 2. Orange Peel / Poor Flow-Out

Cause	Remedy
Inadequate leveling or incorrect viscosity	Add flow/leveling agent (e.g., BYK-310, Tego Flow 380)
Too fast drying solvent system	Blend fast & slow solvents (e.g., acetone + xylene)
Cold substrate or low humidity	Warm the can to 25–30°C before spraying

✅ 3. Sedimentation or Pigment Settling in Can

Cause	Remedy
Lack of dispersant or poor pigment wetting	Add pigment dispersants (e.g., BYK-9076, Efka 3777)
No anti-settling agent	Add fumed silica or polyamide-based thixotropes
Poor grinding or insufficient dispersion	Improve premix and grind time; achieve Hegman > 6

✅ 4. Clogging of Spray Nozzle

Cause	Remedy
Improperly dispersed pigments or thickeners	Use finer grinding; filter before filling
High solid content or low solvent cut	Adjust viscosity; increase solvent ratio slightly
Long idle time without shaking	Shake well before reuse; label instructions to shake

✅ 5. Long Drying Time (>3 min)

Cause	Remedy
Excessive use of slow solvents	Balance with fast solvents (acetone, MEK)
Humid conditions or thick application	Spray in dry air; use multiple light coats
Absence of drying accelerators	Add cobalt octoate (0.3–0.5%) or driers compatible with acrylics

✅ 6. Poor Adhesion to Substrate

Cause	Remedy
Improper surface preparation	Clean/degrease substrate with IPA or solvent
Incompatible resin-substrate combination	Add adhesion promoter or use primer (if on plastic/metal)
Moisture or oil film on surface	Ensure surface is dry and dust/oil free before spraying

✅ 7. Blushing or Hazy Finish

Cause	Remedy
Rapid solvent evaporation in high humidity	Add small % of slower solvent (e.g., butyl acetate, xylene)
Lack of co-solvent or flow control	Add leveling agent or plasticizer (small % Texanol, if safe)

✅ 8. Inconsistent Gloss or Shade

Cause	Remedy
Variation in pigment dispersion or batch mix	Ensure uniform grinding and proper dispersion
Over-dilution with solvent or excessive propellant	Keep total solids consistent; use calibrated fill valves