Chlorinated Polypropylene (CPP) is a versatile functional polymer that has gained widespread use across multiple industrial sectors due to its exceptional adhesion properties, compatibility with various resins, and ability to modify surface characteristics of low-energy materials. Below are the three primary application fields of CPP, each playing a critical role in modern manufacturing and coating technologies. 1.CPP for Inks (Chlorinated Ink Resin) High-molecular-weight CPP is specifically designed for printing inks on PP substrates, available in both toluene-soluble and ester-soluble systems. It is mainly used in packaging printing to effectively enhance ink adhesion on PP film surfaces, preventing the printed layer from detaching during processing or end-use. The most common end-use is in rotogravure and flexographic printing of PP films, which are extensively used for snack food packaging, confectionery wraps, shrink sleeves, and laminated stand-up pouches. The inherent non-polar nature of PP films causes conventional inks to exhibit poor wetting and weak anchorage, leading to smudging, rubbing, or complete detachment during handling or transportation. By utilizing high-molecular-weight CPP as the ink vehicle or as a co-binder, the ink layer forms a strong physical and chemical bond with the PP surface, ensuring excellent rub resistance, block resistance, and adhesion even under high-speed printing and subsequent converting operations. Additionally, the high molecular weight imparts improved pigment wetting and dispersion stability, resulting in vibrant colors and consistent print density across long production runs. 2. Adhesion Promoter for PU Inks Low-molecular-weight CPP is used as an adhesion promoter for PU inks, primarily to solve adhesion problems on PP and PE films. This application is common in packaging printing, where it strengthens the bond between the ink layer and low-surface-energy substrates, effectively preventing ink peeling, smudging, and other defects, thereby ensuring print quality. 3.Automotive Coatings and Adhesives CPP exhibits strong affinity for polyolefin substrates such as PP and TPO, and shows good compatibility with resins like acrylics and polyurethanes, significantly improving coating adhesion. Specific applications include: •Automotive bumper coatings (high-flexibility grades); •Interior trim coatings (low-VOC, environmentally friendly formulations); •Adhesion-promoting primer layers for polymer substrates; •Adhesives for structural bonding of PP to metals and PP to rubber. We can supply many different types of CPP resin. So any more informations, pls let us know.

What is reflective paint? Reflective paint is made by mixing directional reflective materials in a solvent. Acrylic resin is the base material. Reflective paint is a new type of reflective paint. It reflects light through reflective beads. It has better reflective effects at night. Due to high reflectance, it can prevent ultraviolet light irradiation and color fading. It is also highly resistant to salt spray, acid and alkali. How to use reflective powder for paint? Method 1: Reflective paint is made by directly mixing reflective powder with paint. It is easy to use and control. Reflective powder is used according to the reflectance. Method 2: Preparation of reflective paste: Weigh an appropriate amount of reflective powder, and mix it with the solvent (cyclohexanone) into paste. Then, mix it with transparent printing paste by stirring. Reflective powder will be half exposed on the surface, to achieve the reflective effect. Reflective powders of different particle sizes have different reflective effects. (Different particle sizes will lead to better reflective effects.) What is reflective paint used for? Applications of reflective powder in paint 1. Traffic signs Reflective powder is an important material of traffic signs. If reflective powder is used in paint of traffic signs, traffic signs will be clearly visible at night. This can improve the road safety. 2. Architectural decoration Reflective paint is also widely used in architectural decoration. When reflective paint is applied on the surfaces of buildings, the visual effect of buildings at night will be enhanced. 3. Automotive paint Reflective powder is often added in automotive paint. It has a protective effect. It can improve the safety of vehicles running at night. What are the precautions for using reflective paint? 1. Thoroughly remove oil stains, water stains and dust on the substrate surface before construction. Keep the working surface dry. 2. Fully mix the reflective primer and reflective paint before use. Stir them constantly during construction. 3. First apply our reflective primer. When the reflective primer is dry, spray reflective paint. Preferably, spray two layers of reflective primer on cement. 4. The paint film should be even and thin. Its thickness should be about 20 microns. Otherwise, the effect will be poor.

As flexible packaging and high-speed converting lines push for greater efficiency, friction control has emerged as a non‑negotiable quality parameter. Industry experts point to micronized PTFE wax as the go‑to additive for achieving consistently low coefficients of friction (COF) without compromising print quality. In modern printing ink formulations, the coefficient of friction is far more than a laboratory metric—it directly dictates how smoothly films, foils, and paper run through rewinders, sealers, cutters, and fillers. When COF is too high, converters face a cascade of costly issues: blocking in wound rolls, surface scratching, erratic feeding, and frequent line stoppages. Conversely, overly low friction can create register problems or stack slippage. Striking the right balance is therefore a primary formulation challenge. Micronized polytetrafluoroethylene (PTFE) wax has gained traction as a highly efficient solution for lowering COF in both solvent‑based and water‑based ink systems. Its unique chemistry—characterised by an exceptionally low surface energy—allows fine particles to migrate toward the ink film’s surface during drying or curing. There, they form an ultrathin, discontinuous lubricating layer that drastically reduces sliding resistance while preserving the underlying adhesion and mechanical properties. Beyond slip: anti‑blocking and abrasion resistance The benefits extend beyond simple slip enhancement. In flexible packaging, where printed webs are wound under high tension and stored for days or weeks, anti‑blocking performance is critical. PTFE wax minimises the adhesion between adjacent layers, preventing costly roll defects. Simultaneously, the same lubricating effect reduces scuffing and abrasion during transportation, ensuring that finished packages reach brand owners with pristine graphics. Choosing the right PTFE grade Not all PTFE waxes perform identically. Formulators must evaluate particle size, dispersion quality, and resin compatibility to achieve optimal results. Fine micronised grades—typically in the 3–6 µm range—yield smoother surfaces and superior clarity, which is especially valued in high‑definition printing on transparent films. Compatibility with polyester, polyurethane, nitrocellulose, and acrylic binders is equally essential for stable viscosity and consistent ink laydown. Dosage, however, requires careful calibration. Under‑dosing fails to deliver the desired COF reduction, while overdosing can dull gloss, impair intercoat adhesion, or cause plate build‑up. Most successful formulations fall within 0.5–3% by weight on total ink solids, but the optimal level varies with substrate, application method, and drying conditions. For instance, BOPP and PE films—common in snack food packaging—often respond well to finer PTFE particles combined with a secondary slip agent. PET films and aluminium foil, on the other hand, may benefit from coarser grades or blended systems that incorporate polyethylene wax, amide wax...