Weatherfast for exterior pipe
Above-ground and exposed pipe needs sunlight-resistant pigments so identifying colours and stripes do not fade over years of service.
Applications
Pigments for PVC Pipes
Pigment recommendations for pvc pipes with technical checks and export enquiry support.
Rigid PVC pipe is a durable, often outdoor product, so organic pigment selection focuses on weather fastness, heat stability through the extrusion process and freedom from any interaction with the PVC stabiliser system. Pipes buried, exposed or pressure-rated must hold colour and not suffer pigment-induced degradation. Buyers should confirm the pigment is stable in PVC's processing window, weatherfast for exterior and above-ground pipe, compatible with lead-free stabilisers and lubricants, and dispersible in dry-blend or compound without plate-out that fouls dies and calibration equipment.
At a glance
What Pigments for PVC Pipes covers
PVC processing heat
Pigments must survive PVC extrusion without shade shift and without promoting the resin's thermal degradation during processing or hold-ups.
Stabiliser compatibility
Confirm pigments do not interfere with lead-free calcium-zinc or tin stabilisers, avoiding colour change or reduced heat stability of the compound.
No die plate-out
Choose grades that resist plate-out so pigment does not build on dies and calibrators, causing surface defects and downtime.
Recommended pigments
High-demand grades to consider
A starting shortlist of export-grade organic pigments relevant to Pigments for PVC Pipes. Open any grade for shade, fastness and packing detail, or send your requirement for a matched recommendation.
Red Pigments
Pigment Red 146
PR146Naphthol red with balanced brightness and industrial usability.
View export grade Pigment PastesPolyester Pigment Paste
Polyester PasteDispersion paste designed for polyester resin coloration.
View export grade Green PigmentsPhthalocyanine Green 7
Pigment Green 7Chlorinated phthalocyanine green for durable industrial coloration.
View export grade Yellow PigmentsPigment Yellow 138
PY138High-performance yellow for demanding coating and plastic requirements.
View export grade Orange PigmentsPigment Orange 13
PO13Diarylide orange used for inks, textiles, and industrial colorants.
View export gradeExplore more
Related pages & export hub
Answers
Pigments for PVC Pipes — frequently asked questions
What pigment properties matter most for PVC pipe?
Weather fastness, heat stability in the PVC process and compatibility with the stabiliser system rank highest. Since pipe is durable and often outdoors, colour must last for years, and the pigment must not accelerate PVC degradation or react with lubricants and stabilisers during processing.
Do organic pigments interact with PVC stabilisers?
They can. Some pigments interfere with calcium-zinc, tin or other stabilisers, causing colour shift or reduced thermal stability of the compound. This is why pigment selection for PVC must be validated with the actual stabiliser and lubricant package, not judged on the pigment in isolation.
Why is weather fastness emphasised for pipe colours?
Much PVC pipe is stored, installed or used above ground where sunlight degrades weak pigments. Faded identification colours and stripes undermine the product. Weatherfast organic pigments, chosen for the shade, keep colour coding legible and appearance consistent across long outdoor service life.
How is plate-out avoided in PVC extrusion?
Plate-out is pigment and additive depositing on dies and calibration tooling, causing surface marks and stoppages for cleaning. Selecting plate-out-resistant pigment grades and balancing the lubricant system reduces it, keeping pipe surfaces smooth and extrusion running continuously without frequent tooling cleandowns.
Buyer knowledge base
Pigments for PVC Pipes: a quick sourcing guide
Buying organic pigments from India, simplified: the checks that matter, the documents to expect and the quickest route from enquiry to shipment.
Colour strength
High tinting strength means less pigment per batch and cleaner, more economical shades.
Weatherable choices
For outdoor use, phthalocyanine and DPP grades keep colour through sun and weather.
Container-ready packing
Bags, cartons, pallets and labels planned for clean warehouse handling and clearance.
Documents ready
TDS, SDS/MSDS and batch COA, plus REACH and RoHS declarations issued on request.