•  On Jul, 28, 2018
•  admin
•   PVA Sponge Roller

Recently we visit a potential customer; they show us some PVA sponge roller in store.  They would like to consult our opinion about the sponge quality.  We can easily see yellow mark and black colour mark at both end.

We could immediately conclude that this PVA sponge roller should be rejected without any consideration as it has failed the contamination criteria.

Determine a Quality PVA Sponge Roller

Sponge with Black Mold Mark

User could always evaluate a PVA sponge roller from various aspects in order to determine a quality PVA sponge roller product.

• Dimension
• Surface Appearance.
• Cleanliness
• Chemical Residue.

Getting a sponge roller comply with dimension and surface appearance could be the very beginning step to examine a products, however comply with stringent cleanliness criteria as well as maintain a low level chemical residue are even more challenging process.

Causes which cause poor Quality

In our experience, the cleanliness specification and chemical residue are the most stringent criteria which many users over look.  In order to achieve stringent cleanliness specification, the PVA sponge roller manufacturer has to establish a reliable cleaning process.

1. Yellow Mark.  The yellow mark mostly is the chemical residue, it could be a kind of mold indication or the residue of Formaldehyde.
2. Black Mark. The black mark is an obvious mold mark, this is because the sponge roller was not fully dry at both end, mold being generated within several days.

Our reader maybe curious just a small reluctance, the effect is huge.  These are all the details DST is carrying out during our manufacturing process, and this also ensure we could deliver quality PVA sponge roller for many industries.

How to ensure Quality PVA Sponge Roller

As we stated earlier, there are many factors affect a PVA sponge roller quality.  DST has been spending years in develop many PVA sponge products; we also determine very stringent product specification as well as reliable manufacture process to ensure quality products.

We emphasize quality products only are available if we could comply the below:

1. Appropriate product development formulation
2. Establish reliable process
3. Determine appropriate Key Process Input Parameters(KPIV)
4. Monitor Key Product Output Parameters (KPOV)
5. Adequate packing to free from contamination
6. Understand the products thoroughly.

A poor quality or deteriorate quality sponge roller products shall be discarded.  The Yellow contamination or Black colour mold mark will contaminate the process and products.  You are always welcome to contact DST and tell us your needs about PVA sponge.  I believe we are able to supply the PVA sponge material for your process needs.