Rubber Research Institute of Sri Lanka

Ministry of Plantation Industries

Research Managers


W M G Seneviratna , PhD ,

Twenty four years of experience in Research and Development work on Rubber Technology and Waste Treatment Technology, of which last 5 years as a research manager in the capacity of Deputy Director Research (Technology). The effluent treatment technique he developed has won several international awards as well as few local awards. He is a visiting lecturer in many universities in Sri Lanka on rubber technology and waste treatment technology.

Current research interests

Waste water treatment technologies for industrial effluents, research on rubber blends and composites, latex dipped product manufacturing technology, process systems management and certification, and latex protein allergy issues.


  • Silver medal (1998), 26th International exhibition of inventions, new techniques and products held in Geneva, Switzerland 
  • UNDP   cash award, 1998 -for the development of a cost effective treatment system for rubber effluents
  • Merit  award - Plastic & Rubber Institute  - 1998
  • Most innovative award - Plastic & Rubber Institute -  2006


  • Process for viscosity molecular weight reduction in  natural rubber- Sri Lanka Patent No. 9749, (A. Coomarasamy, W.M.G.Seneviratne, C.N. Wickramasinghe)
  • Cost effective treatment method based on enclosed anaerobic septic tank digester     coupled with diffused aeration aerobic process (1998),  Sri Lanka   patent No. 11396 (W.M.G. Seneviratne)
  • Manufacture of porous polymer profile (Tubular, Square,Etc) by extrusion-sintering process  (soaker hose for drip irrigation) (2003) - Joint patent by Samson International Ltd. and RRISL (H.N.K.K. Chandralal, A.H.L.R. Nilmini, W.M.G. Seneviratne, S.M.A. Samarakoon


Additional Director

V H L Rodrigo , PhD

Graduated from Faculty of Agriculture, University of Peradeniya in 1985. Obtained MSc from university of Essex, Uk & PhD from University of Wales, UK. Won 12 awards including several Presidential Research Awards, General Research committee award of SLAAS, Young scientists’ award of NASTEC and two National awards for excellence in agriculture research of SLCARP. Authored over 150 research & technical articles.Began the research career in 1986 at RRISL as a junior researcher.


Deputy Director Research (Biology)

Mrs. Priyani Seneviratne , PhD

Has over 30 years research carrier and many research publications. Has obtained the BSc degree from University of Peradeniya. Trained at United States, Department of Agriculture, U.S.A. on Plant Tissue Culture and Nursery Techniques. PhD degree from University of Bath, U.K. on Micropropagation of Hevea and early detection of rubber clones using biosynthetic rate, detected from precursors with labeled carbon.

The research and development areas of interest are rubber seed production, development of young budding technique and nursery practices, improving quality budwood nursery management, and immature upkeep harvesting and plant tissue culture.


Deputy Director Research (Technology)

Susantha Siriwardene, PhD

Dr. Susantha Siriwardena currently holds the post of Deputy Director-Research (Technology) at the Rubber Research Institute of Sri Lanka. He completed his BSc in 1986 and MSc (Engineering) in 1994. He obtained his PhD in 2003. He has 25 years’ experience in the fields of on raw rubber processing and rubber technology. He was awarded the National Science & Technology “the best scientist of the year award” in the category of Development and Adaptation of Technology for SME Sector in 2008. He has eight international publications and more than forty international and local conference papers. He serves as a visiting lecturer at many national Universities.

For Information

  • Call 1919

Contact Info

  • Rubber Research Institute of Sri Lanka.
  • Dartonfield, Agalawatta. 12200
  • 034 - 2247426, 034 - 2247383
  • 034 - 2248459, 034 - 3439999
  • 034 - 2247427