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Buyer's guide

Paint Additives, Molecular Sieves & Titanium Dioxide Pigments from China — A Specialty Chemicals Buyer's Guide

Sourcing guide for specialty chemicals from China — paint additives, molecular sieves (3A/4A/5A/13X), titanium dioxide pigments. Real product images from LYNew Chem. Material selection, REACH/TSCA compliance, MOQ economics.

Information notice: the details below were compiled from published supplier material and buyer correspondence. Specifications, MOQ, lead times and pricing change — confirm every figure with the supplier before you order.

Product range — actual catalogue images

The product images below are hosted on the manufacturer's official website (lynewchem.com) and link directly to the manufacturer's catalogue. Click any image to view the full specification page in a new tab.

Paint additive product family — dispersant, wetting agent, leveling agent for industrial coatings.

Molecular sieve product range — zeolite pellets, beads, and powder for desiccant and adsorption applications.

Titanium dioxide pigment series — high-tinting-strength TiO2 for industrial coatings and plastics.

Product family overview

Product familyKey productsTypical applicationsFOB China typical price
Paint additives — dispersantsPolymeric pigment dispersants for solvent-based and waterborne coatingsIndustrial coatings, automotive paint, architectural paintUSD 4.50-15.00 per kg
Paint additives — wetting agentsSurfactants for substrate wetting and pigment surface tensionCoating formulation, ink, adhesivesUSD 5.50-18.00 per kg
Paint additives — leveling agentsPolysiloxane and polyacrylate leveling additivesIndustrial coatings, wood coatings, automotiveUSD 8.50-25.00 per kg
Paint additives — defoamersSilicone and mineral oil defoamersWaterborne coatings, ink, adhesivesUSD 6.50-22.00 per kg
Molecular sieve 3APore size 3Å; for water removal from organicsEthanol drying, refrigerant drying, alcohol dehydrationUSD 2.20-4.50 per kg
Molecular sieve 4APore size 4Å; general-purpose desiccantInsulating glass, double-glazing, packagingUSD 1.80-3.80 per kg
Molecular sieve 5APore size 5Å; n-paraffin separation, gas dryingPetrochemical separations, hydrogen purificationUSD 2.80-5.50 per kg
Molecular sieve 13XPore size 10Å; CO2/H2S removal, oxygen generationAir separation, natural gas treatment, oxygen concentratorsUSD 3.20-6.50 per kg
Titanium dioxide rutile (R-902 type)Universal grade for coatings, plasticsIndustrial paint, plastics masterbatch, paper coatingUSD 2,400-3,200 per ton
Titanium dioxide rutile (R-996 type)High-durability outdoor gradeExterior paint, automotive, weather-resistant plasticsUSD 2,800-3,800 per ton
Titanium dioxide anatase (A-101 type)Indoor / matte paint gradeInterior paint, ceramics, food packagingUSD 1,800-2,400 per ton
Specialty pigmentsIron oxide, organic pigmentsColor matching for coatings and plasticsUSD 1,200-8,500 per ton

Paint additive selection — when each type is needed

Additive typeFunctionDosage typicalWithout it, you get
DispersantStabilize pigment particles to prevent re-agglomeration5-15% on pigment weightPigment settling, color streaking, gloss loss
Wetting agentReduce surface tension for substrate wetting0.1-0.5% on total formulaCrawling, fish-eyes, poor adhesion
Leveling agentAchieve smooth uniform coating surface0.1-0.5% on total formulaBrush marks, orange peel, surface defects
DefoamerEliminate air entrapment during mixing/application0.1-0.4% on total formulaBubbles, craters, pinholes in coating
Anti-settling agentPrevent pigment settling in storage0.2-1.0% on total formulaSettling cake, stirring required before each use
Anti-skinning agentPrevent surface skinning of solvent-based coatings0.05-0.3% on total formulaSkin formation in can; waste of paint
UV absorber / HALSProtect coating from UV degradation0.5-3.0% on resin solidsYellowing, chalking, embrittlement outdoors
Adhesion promoterImprove adhesion to difficult substrates0.2-2.0% on total formulaCoating peels from plastics, metals, glass

Molecular sieve selection by application

ApplicationRecommended sieveForm (pellet/bead)Notes
Insulating glass / double-glazing desiccant3A or 4ABead 0.4-0.8mmActivated and packaged in spacer bar
Refrigerant drying (R134a, R410A)3A (XH-9 grade)Bead 0.4-0.8mmSpecialty grade — won't crack from R-gas equilibrium
Ethanol / fuel ethanol drying3APellet 1.6-2.5mmHigher capacity for ethanol loop
Compressed air drying4A or 13XBead 1.6-2.5mmHeat-regenerable bed
Natural gas drying4A or 13XPellet 3-5mmPressure swing or thermal swing regen
n-paraffin / iso-paraffin separation5APellet 1.6-2.5mmPetrochemical separation
CO2 / H2S removal from gas13XPellet 1.6-3mmGas treatment, biogas upgrading
Oxygen generation (PSA)13X (LiX/NaX)Bead 0.4-1.6mmPressure-swing adsorption from air
Hydrogen purification5A or 13XBeadPre-treat for fuel cell / industrial H2
Cracked-gas drying / olefin plant3APelletRefrigerant of upstream cryogenic separation

TiO2 pigment selection — rutile vs anatase

Rutile TiO2 represents about 90% of global TiO2 demand because of its weather durability and superior optical properties. Anatase has narrower applications — primarily interior paint and applications where photocatalytic activity is desired (self-cleaning surfaces, solar cells). For industrial coating manufacturers, default specification is rutile; anatase is selected when cost-driven or photocatalytic property needed. Within rutile, "universal grade" (R-902 type) handles 60-70% of typical applications; "high-durability outdoor grade" (R-996 type) for premium exterior applications. Specifying the right grade saves 15-25% on TiO2 cost without sacrificing coating performance.

PropertyRutile TiO2Anatase TiO2
Refractive index2.71 (higher)2.55 (lower)
Hiding powerHigher (better opacity)Lower
Tinting strengthHigherLower
Photocatalytic activityLower (more weather-stable)Higher (less stable outdoors)
Outdoor durabilityExcellent (weather-resistant)Poor (chalks, yellows)
CostHigher (USD 2,400-3,800/ton)Lower (USD 1,800-2,400/ton)
Best applicationsExterior coatings, automotive, durable plasticsInterior paint, ceramic glaze, paper

Pricing brackets — wholesale

Order tierTotal quantityDiscountContainer utilizationLead time
Sample / formulation development5-50 kgList price; air courierAir freight10-20 days
Small-batch production500-3,000 kg per spec5-12%LCL20-35 days
Mid-scale OEM (paint plant, plastics compounder)5-25 tons per spec12-22%20' or partial 40' container30-50 days
Large OEM / industrial buyer50-300 tons per quarter20-30%40' or 40HQ container40-70 days
National distributor / mega-buyer500+ tons per quarter25-35%; index pricingMultiple 40HQ containers50-90 days

Compliance and regulatory considerations

EU REACH (Registration, Evaluation, Authorisation, Restriction of Chemicals) requires all chemicals shipped to EU in quantities >1 ton/year per importer to be registered. Verify supplier provides REACH-compliant Safety Data Sheet (SDS) in all required EU languages, registration numbers for the specific substances, and substance-of-very-high-concern (SVHC) declarations. Some specialty chemicals (e.g., certain phthalates, lead-based compounds) are restricted or banned. Working with experienced EU importers helps navigate documentation requirements. Reputable suppliers like LYNew Chem provide REACH compliance support for active products.

RegulationApplies toMarkets
REACHAll chemical substances entering EUEU; substances must be registered or exempted
TSCA (Toxic Substances Control Act)All chemical substances entering USAUSA; new substances need EPA notification
FDA Food Contact (21 CFR)Materials contacting food (TiO2 in food packaging, molecular sieves in food applications)USA food and pharma
EU Regulation 1935/2004Materials contacting food (EU equivalent)EU food and pharma
RoHSElectronics applicationsEU + most international
EPA Significant New Use Rules (SNUR)Specific specialty chemicalsUSA; substance-specific
Korean K-REACHChemicals entering KoreaSouth Korea
China REACH (MEP Order 7)New chemicals in ChinaDomestic Chinese formulations
ISO 9001 / ISO 14001Quality and environmental managementGlobal; reputable suppliers maintain
Halal / Kosher certificationSpecific market accessMiddle East, ethnic markets

Order workflow — specialty chemicals procurement

View the full supplier profile, certifications, contact details, and complete product catalogue.

LYNew Chem (China) — manufacturer and distributor of specialty chemicals. Paint and coating additives: polymeric pigment dispersants, surfactant wetting agents, polysiloxane and polyacrylate leveling agents, silicone and mineral oil defoamers, anti-settling agents, anti-skinning agents, UV absorbers / HALS stabilizers, adhesion promoters. Zeolite molecular sieves: type 3A (pore 3Å) for ethanol drying, type 4A (4Å) general desiccant, type 5A (5Å) paraffin separation, type 13X (10Å) for CO2/H2S removal and oxygen generation. Titanium dioxide pigments: rutile grades (R-902 universal, R-996 high-durability outdoor) and anatase grades (A-101 indoor / matte) for industrial coatings, plastics, paper, and ceramic glaze. Specialty pigments and additives. REACH-registered for EU export. Compliance documentation for major export markets.

  • Application analysis — define exact chemical specification needed (paint additive type, sieve grade, TiO2 type/grade) based on formulation requirement
  • Specification clarification — request technical data sheet (TDS) showing chemical composition, physical properties, performance specifications
  • Sample order — typically 1-10 kg per candidate; verify chemical purity (HPLC or GC where applicable), physical properties (particle size, density, color), formulation performance (test in actual paint/plastic application)
  • Compliance verification — request REACH (EU), TSCA (US), FDA (food contact) declarations as applicable to destination market; verify SDS available in required languages
  • Pilot production trial — process sample in actual production environment for 30-90 days; document any handling, performance, or quality variations
  • First commercial order — typically 5-25 tons per spec for mainstream use; specify packaging (drums, bags, totes), labeling, and shipping documentation
  • Quality acceptance — incoming inspection per supplier QC certificate (chemistry, physical properties); send 1-2% of batch to independent lab for spot verification on critical orders
  • Series replenishment — typically monthly to quarterly orders aligned with production schedule; for high-volume buyers, index-based pricing for commodity specs (especially TiO2)

Frequently asked questions

Companion specialty industrial materials guide.

Companion ceramic / specialty materials sourcing.

Companion specialty distribution sourcing guide for adjacent categories.

Source: Product images on this page are hosted on the manufacturer's official website (lynewchem.com) and link directly back to that website. All product information was summarised from the supplier's public catalogue.

Brand mentions and trademark compliance: References to Tier-1 specialty chemicals manufacturer brands (BASF, Evonik, Dow, Wacker, Clariant, Croda, Cabot, Tronox, Chemours) are made for the sole purpose of describing functional benchmarks and supply-chain context. LYNew Chem is not authorized by, affiliated with, or endorsed by any of these brand owners. Products are aftermarket-fit cross-reference materials manufactured under LYNew Chem's own brand or buyer-private-label only.

Regulatory compliance responsibility: Chemicals imported to specific markets must comply with applicable regulations (REACH for EU, TSCA for US, K-REACH for Korea, etc.). Importer is responsible for ensuring compliance documentation is current and applicable to specific products and quantities. Non-compliant imports may be seized, destroyed at importer expense, or trigger broader trade enforcement.

Hazard handling: Some specialty chemicals are classified as hazardous materials with specific handling, storage, and shipping requirements per IATA, IMDG, DOT, and equivalent regulations. Verify specific hazard classification per supplier SDS and arrange handling per destination jurisdiction safety regulations.

Pricing & specifications: All price ranges, performance figures, and tier definitions reflect general market observation. TiO2 pigment pricing tracks underlying titanium ore commodity and exhibits significant volatility. Confirm current pricing, MOQ, lead time, and material certifications directly with the supplier.

No middleman role: CifyChina provides supplier discovery and editorial content. All transactions occur directly between buyer and supplier through the contact channels published on the supplier's official website.

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