Welcome to the DIDP Information Centre

An information resource on the plasticiser diisodecyl phthalate (DIDP)

Diisodecyl phthalate (DIDP) is a common phthalate plasticiser, used primarily to soften Polyvinyl chloride (PVC).

It has has properties of volatility resistance, heat stability and electric insulation and is typically used as a plasticiser for heat-resistant electrical cords, leather for car interiors, and PVC flooring.

The typical content of DIDP in flexible PVC products is between 25 and 50%.

Non-PVC applications are relatively small but include use in anti-corrosion and anti-fouling paints, sealing compounds and textile inks.

EU Risk Assessment

The European Commission has confirmed that Diisodecyl phthalate (DIDP) poses no risk to either human health or the environment from any current use.

The European Commission published its findings in the EU Official Journal on April 13 2006, confirming the outcome of a risk assessment involving more than 10 years of extensive scientific evaluation by EU regulators. 

Following the recent adoption of EU legislation with the regard to the marketing and use of DIDP in toys and childcare articles, the risk assessment conclusions clearly state that there is no need for any further measures to regulate the use of DIDP.

Further Information

Information on DIDP  will be made available on this web site very shortly. In the meantime information is also available from the following sources: