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Dimethicone DM 350 is a 100% active, medium-viscosity silicone fluid. Chemically it is a linear, non-reactive polydimethylsiloxane (INCI: Dimethicone, CAS 63148-62-9) with a kinematic viscosity of 350 cSt at 25°C. ataman-chemicalswacker It is a crystal-clear, colourless, essentially odourless liquid. Dow’s XIAMETER PMX-200 Technical Data Sheet gives the 350 cSt grade a specific gravity of 0.969 and a refractive index of 1.4034 at 25°C. It is the straight equivalent of XIAMETER PMX-200 Silicone Fluid 350 cSt and DOWSIL 200 Fluid 350 cSt (the old Dow Corning 200 Fluid 350 cSt), and of Wacker BELSIL DM 350 and Shin-Etsu KF-96A-350cs. Formulas written around any of these grades can simply swap in DM 350, because the INCI, active content, viscosity grade and performance profile are the same.
In a formula, DM 350 is the ingredient that makes a product feel finished. It cuts drag and stickiness in creams and lotions and stops the white “soaping” effect during rub-in. sunrisebotanics It leaves a silky, non-greasy, water-repellent film on skin and a smooth, glossy, detangled finish on hair. dowcosmetihub It also performs outside cosmetics, as a release agent, lubricant, polish additive, antifoam and water-repellent treatment. polysilblagden
The key technical property is viscosity. At 350 cSt, DM 350 sits in the middle of the dimethicone range. It has more body and substantivity than light 5–100 cSt fluids, so it leaves a longer-lasting cushion and barrier. ulprospector Yet it spreads far more easily than 1,000 cSt and higher grades or silicone gums. Its very low surface tension (21.1 mN/m at 25°C on Dow’s PMX-200 data sheet) is why it wets and spreads over skin, hair and other surfaces so readily. It is non-volatile (0.15% volatile content at 150°C on Dow’s data sheet), so it stays on skin instead of evaporating. Its viscosity also changes far less with temperature than mineral or vegetable oils, so the texture of your finished product stays consistent between a Karachi summer and a Lahore winter. daumochinhhang
Silky Slip, Shine and Conditioning with One Ingredient: One addition gives creams and lotions glide and a soft, velvety after-feel. specialchem In hair it adds lubricity, gloss and frizz control, and makes wet and dry combing easier. dowspecialchem You get skin feel and hair conditioning from a single raw material.
Takes Out Whitening, Soaping and Tack: DM 350 is a classic de-soaping agent. It stops lotions from foaming white during rub-in and reduces the tacky, draggy feel of glycerin-rich and polymer-heavy formulas. ataman-chemicals +2 Dow’s PMX-200 data sheet states that “additive quantities as small as 0.1% may suffice” for de-soaping creams and lotions.
A Breathable, Water-Repellent Barrier: The silicone film repels water and helps reduce moisture loss. sunrisebotanics Because the flexible siloxane backbone is permeable to water vapour and oxygen, the film does not feel heavy or suffocating. wacker The US FDA’s OTC skin-protectant monograph, 21 CFR 347.10(g), lists “Dimethicone, 1 to 30 percent” as an approved active. That makes it a core ingredient in barrier creams, hand creams and diaper-rash products, and it adds water resistance to sunscreens. formulatorshubkenyanih
Works in Low Doses: Most skin products need only 0.5–5%, and de-soaping starts at fractions of a percent. sunrisebotanics A small amount changes the feel of the whole batch, which keeps cost per kilogram of finished product low. sunrisebotanics +2
Dow Corning Quality at a Lower Cost: DM 350 matches the specification of the major branded 350 cSt fluids. You get the same performance without paying import premiums or waiting on drum-size minimums. Stexol Chemicals stocks it locally in Pakistan, so there is no reformulation and no change to your ingredient list: it is still “Dimethicone.”
Comes with Common Cosmetic Ingredients: DM 350 blends with mineral oil, esters (IPM, IPP, C12-15 alkyl benzoate), fatty alcohols, waxes, butters, cyclomethicone and other dimethicones in any viscosity, as well as hydrocarbons and higher alcohols. wacker It works with emulsifiers such as Olivem 1000, glyceryl stearate/PEG-100 stearate and cetearyl alcohol/ceteareth-20, and with cationic conditioners such as BTMS and cetrimonium chloride. It is chemically inert across pH 3–10. formulatorshubkenyadow It is not miscible with water, glycerin, or ethanol and other short-chain alcohols, and only partly miscible with some vegetable oils. polysilwacker Test clarity before you commit to a clear oil blend.
Handling Note: DM 350 is a clear, colourless, pourable liquid with the consistency of a light syrup. ellsworth It does not dissolve in water, so add it to the oil phase. naturalbulksupplies It can be heated with the oils to 70–75°C, which is well within its stability range, or stirred in at cool-down (below 40–45°C) under good mixing. aquatech-skincarehumblebeeandme In water-based products it must be emulsified or suspended: it will not disperse on its own. formulatorshubkenya Use a homogeniser or high-shear mixer for the finest droplet size and best stability. Keep the container tightly closed and store it in a cool, dry place out of direct sunlight, below 50°C. That is Wacker’s limit for BELSIL DM 350; Dow’s PMX-200 data sheet allows storage “at or below 60°C (140°F) in the original unopened containers.” Wipe up spills straight away, because silicone fluid makes floors very slippery.
Product Type Levels of Usage: Target pH: DM 350 is stable and effective from pH 3 to 10, so set the pH for your finished product, not for the silicone. formulatorshubkenya
| Product Type | Dimethicone DM 350 in Formula (by weight) |
| Face creams, body lotions and gels (slip, de-soaping, anti-tack) | 0.5–5% sunrisebotanics |
| Hand creams, barrier creams and diaper/baby balms | 1–10% (1–30% for OTC skin-protectant claims) lotioncrafterpolysil |
| Sunscreens and after-sun lotions | 1–5% |
| Rinse-off and leave-in hair conditioners | 0.5–3% |
| Hair serums and anti-frizz oils (blended with lighter silicones or cyclomethicone) | 5–30%+ |
| Antiperspirants and deodorants (sticks, roll-ons, creams) | 1–10% |
| Foundations, primers, BB creams and lipsticks/lip balms | 1–10% |
| Shaving creams, gels and aftershave balms | 0.5–2% |
Formulation Build Order:
COA By Batch: Every batch of DM 350 ships with its Certificate of Analysis, covering appearance, viscosity at 25°C, specific gravity and refractive index, so your QC team can approve it on arrival.
There is No Minimum Order Pressure: Buy a small pack to test in the lab, then scale to drums when your formula is approved. You pay for what you need.
Discounted Pricing on Bigger Orders: Tiered bulk pricing rewards larger volumes. Send your quantity on WhatsApp at this number [ +92-316-0099118 ] for a quote.
Same-Day Dispatch: Orders confirmed during business hours are dispatched the same day, so your production line keeps moving.
Q: Is Dimethicone DM 350 the same as XIAMETER PMX-200 350 cSt or Dow Corning 200 Fluid 350 cSt?
A: Yes, it is a direct equivalent: same INCI (Dimethicone), 100% active and 350 cSt viscosity. Dow’s data sheet lists the PMX-200 350 cSt grade at a specific gravity of 0.969 and a refractive index of 1.4034 at 25°C. Formulas built on PMX-200 350 cSt, DOWSIL 200 Fluid 350 cSt, BELSIL DM 350 or KF-96A-350cs can switch to DM 350 without reformulating. As with any raw-material change, run one small stability batch first.
Q: What is the difference between 350 cSt and other viscosities like 5, 100 or 1000 cSt?
A: The number is the viscosity. humblebeeandme Low grades (5–20 cSt) are light and fast-spreading. 100 cSt is a light all-rounder for serums. 350 cSt is the standard all-purpose grade for creams, lotions and conditioners, balancing spreadability with a lasting cushion and barrier. rawsourcenewdirections 1,000 cSt and higher grades feel heavier and give more shine and substantivity. Cyclomethicone (D5) is volatile and evaporates, whereas DM 350 stays on the skin. humblebeeandme All dimethicone viscosities mix with each other, so you can blend grades to fine-tune the feel. andisilwacker
Q: Is DM 350 water-soluble? How do I add it to a water-based product?
A: No. It is insoluble in water, glycerin and ethanol. formulatorshubkenya +2 Add it to the oil phase of an emulsion, or add it at cool-down with good mixing, and make sure your emulsifier system can hold it. aquatech-skincare For clear water-based gels, use a water-soluble silicone such as PEG-12 Dimethicone instead.
Q: How should I store DM 350, and what is its shelf life?
A: Keep it tightly closed in a cool, dry place, out of direct sunlight. Store below 50°C (Wacker’s limit; Dow allows “at or below 60°C” in unopened containers). It is chemically very stable. humblebeeandme Major producers give 36 months from manufacture (Dow lists 1080 days for PMX-200 350 cSt), dowspecialchem and the exact date is printed on each batch’s COA.
Q: Can DM 350 be used in both skin and hair products? Is it greasy or pore-clogging?
A: Yes. It is one of the most widely used conditioning ingredients in both skin and hair care. tkbtrading It feels silky rather than greasy, reduces the oily feel of heavier oils, and is generally regarded as non-comedogenic. ataman-chemicalsspecialchem In its 2003 report (Int J Toxicol 22 Suppl 2), the CIR Expert Panel concluded that dimethicone is “safe as used in cosmetic formulations,” and it kept that conclusion in its later re-review.
Order Dimethicone DM 350 from Stexol Chemicals in small lab packs or bulk drums. Every batch comes with a COA, orders dispatch the same day, and tiered bulk pricing gives you a better rate as volumes grow. Message us on WhatsApp with your quantity for an instant quote and get your formulas running on a Dow-equivalent 350 cSt silicone sourced locally in Pakistan.
| Weight | 1 kg, 500g, 250g, 100g |
|---|
| Parameter | Detail |
| Product Name | Dimethicone |
| INCI Name | Dimethicone |
| Type | Silicone fluid |
| Appearance | Clear, colorless liquid |
| Function | Skin conditioning, hair conditioning, skin protectant, anti-foaming |
| Solubility | Not soluble in water. Best used in oil phase or silicone phase |
| Recommended Use Level | 0.1% to 5%, depending on formula |
| Target pH | Works across a wide pH range. Avoid very strong acid and very strong alkali |
| Pack Size | Small packs and bulk quantities available |
| Shelf Life | 12 months under proper storage |
| Storage | Keep tightly closed in a cool, dry place away from sunlight |
| COA | Available with every batch |
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