FLOPAM FO 4490 VHM Equivalent — Medium-Charge Ultra-High-MW Cationic PAM Selection
ChinaPAM accepts a FLOPAM FO 4490 VHM enquiry and screens two deliberate routes: C8003 to anchor the longer-chain direction and C8001 to preserve the medium-charge alignment. The VHM suffix is mandatory in the grade string — it identifies a distinct ultra-high-MW grade, separate from the root FO 4490 and the SH/SHU/SSH family. Send the full label including VHM and ChinaPAM will open the enquiry, quote the bracket and discuss sample arrangements.
Supply Route Comparison
Published reference data and the ChinaPAM route for FLOPAM FO 4490 VHM
FLOPAM is a trademark of SNF Group and/or its affiliates. ChinaPAM is an independent manufacturer and is not affiliated with, endorsed by, licensed by or a distributor for SNF. The grade name and full suffix are used only to identify the product a buyer is comparing. The primary source is the SNF historical FLOPAM powder catalogue (2007) — a historical document, not a current brand-owner specification. Our products are separately branded ChinaPAM grades and are not licensed copies.
| Parameter | ChinaPAM Supply Route | FLOPAM FO 4490 VHM |
|---|---|---|
| Ionic type / form | Cationic PAM powder; C8003 primary after label and duty confirmation | Cationic PAM powder — SNF FLOPAM catalogue 2007 |
| Charge position | C8001 medium-charge backup; C8003 higher-charge primary for MW direction | Medium — SNF FLOPAM catalogue 2007, page 4, FO 4490 VHM entry |
| Molecular weight | C8003 high-MW primary; C8001 medium-MW backup | Ultra-high — SNF FLOPAM catalogue 2007, page 4, FO 4490 VHM entry |
| Bulk density | Confirmed against quoted ChinaPAM grade at quotation | 0.71 approximate — SNF catalogue 2007; historical indicative value |
| Viscosity ladder | Confirmed by make-down concentration test with the quoted grade | 920/500/210 cps at 5.0/2.5/1.0 g/L — historical catalogue average indicative values |
| Make-down | ChinaPAM powder preparation runs at a 1–3 g/L recommended window, 5 g/L maximum, and no longer than 60 minutes at working concentration. Preparation concentration is not process dosage. | 3 g/L recommended, 5 g/L maximum, 120 min dissolution at 5 g/L and 25 °C — historical catalogue |
| VHM versus SH/SHU/SSH | VHM-specific enquiry handled separately; SH/SHU/SSH suffixes are distinct catalogue grades with different MW positions | VHM is a distinct ultra-high-MW suffix; different from SH, SHU and SSH entries |
| Documents | Current price, stock status, lead time, applicable TDS and sample arrangements are confirmed in the quotation. Batch-specific COA terms are confirmed with the shipment. | SNF historical FLOPAM powder catalogue 2007 — a historical document, not a current brand-owner specification |
Specifications
| Incumbent Model | SNF FLOPAM FO 4490 VHM (VHM suffix mandatory; distinct from root FO 4490, SH, SHU and SSH family) |
| Ionic Type | Cationic PAM powder — SNF historical FLOPAM catalogue 2007 |
| Charge Band (Catalogue) | Medium — SNF FLOPAM catalogue 2007, page 4, FO 4490 VHM entry |
| MW Band (Catalogue) | Ultra-high — SNF FLOPAM catalogue 2007, page 4, FO 4490 VHM entry |
| Bulk Density (Catalogue) | 0.71 — SNF FLOPAM catalogue 2007, approximate; not current brand-owner specification |
| Viscosity Ladder (Catalogue) | 920 / 500 / 210 cps at 5.0 / 2.5 / 1.0 g/L — historical catalogue indicative average values |
| Make-down (Catalogue) | 3 g/L recommended, 5 g/L maximum, 120 min dissolution in deionised water at 5 g/L and 25 °C |
| Packaging (Catalogue) | 25 kg bags and 750 kg big bags — SNF FLOPAM catalogue 2007 |
| ChinaPAM Primary Route | C8003 — high-MW / high-charge; chain-length-priority primary route |
| ChinaPAM Backup Route | C8001 — medium-MW / medium-charge; charge-aligned alternate-axis check |
| Route Boundary | Grade-selection screening — neither route is a drop-in; settled by same-feed trial |
Key Features
- Medium-charge / ultra-high-MW identity documented in an exact FO 4490 VHM entry on page 4 of the 2007 SNF catalogue
- VHM suffix locked; it identifies a distinct ultra-high-MW grade not present in the root FO 4490, SH or SHU/SSH catalogue entries
- 920 / 500 / 210 cps viscosity ladder preserves the ultra-high-MW column for make-down baseline reference
- C8003 primary anchors the chain-length direction; C8001 backup checks the medium-charge axis on the same feed
- 120-minute dissolution condition noted from the catalogue — longer than most SH/SHU entries; confirmed against the incumbent label before the trial
- Make-down conditions drawn directly from the historical catalogue: 3 g/L recommended, 5 g/L max, 120 min dissolution
- Historical 2007 source; current TDS or COA requested from the buyer to confirm current specification
Applications
- Buyer-confirmed sludge dewatering requirements where the incumbent label reads FO 4490 VHM and the medium-charge / ultra-high-MW profile needs evaluation
- Buyer-confirmed wastewater clarification duties where extended chain length is the stated selection criterion
- Buyer-confirmed mining process water applications where the full FO 4490 VHM label is present in the purchase specification
- Procurement matching a confirmed FLOPAM FO 4490 VHM purchase requirement with VHM suffix on the bag
Get a Quote for FLOPAM FO 4490 VHM Alternative Supply
Send the full grade label including the VHM suffix — or a photo of the bag. State your sludge or suspension duty and the make-down equipment you run. That is enough to open the enquiry.
Related Articles
Supply answer: C8003 on chain length, C8001 on charge, route settled on same feed
ChinaPAM accepts a FLOPAM FO 4490 VHM enquiry and screens two deliberate routes. C8003 starts as the chain-length-priority primary: its high-MW position moves toward the ultra-high-MW catalogue entry and its charge position is one step above medium. C8001 is the charge-aligned backup: it matches the medium-charge band more closely, at medium MW.
Neither is a drop-in or performance-guaranteed replacement. The buyer's task is to choose between preserving the ultra-high chain-length direction (C8003) and preserving the medium-charge position more closely (C8001), then close the route from floc strength, drainage, filtrate and cake results on the same feed.
Price, stock and lead time belong to the quotation and are not taken from the historical catalogue.
VHM suffix: a distinct ultra-high-MW grade, not an SH/SHU/SSH variant
The SNF 2007 catalogue places FO 4490 VHM at Medium charge and Ultra-high MW — a distinct position from the root FO 4490 (Standard MW) and from FO 4490 SH / SHU (High MW). Each suffix is a separate catalogue entry with its own viscosity ladder and dissolution specification.
The VHM entry carries a 920 / 500 / 210 cps viscosity ladder and a 120-minute dissolution time. These values come from a historical catalogue and are indicative averages only; they are not a current brand-owner specification. Using a non-VHM route as if VHM had been specified introduces a different preparation baseline before the trial starts.
Send the full FO 4490 VHM label including the VHM suffix. ChinaPAM will carry the exact suffix through the enquiry unchanged.
Three facts the sources actually establish
All three facts come from a single SNF source: the historical 2007 FLOPAM powder catalogue, page 4.
| Fact | Source and locator | What it does not establish |
|---|---|---|
| FO 4490 VHM is listed as a cationic powder at Medium charge and Ultra-high molecular weight. | SNF historical FLOPAM powder catalogue 2007; PDF page 4; text lines 81–111. | Does not establish current SNF specification, current availability or cross-vendor numeric equivalence. |
| The table lists approximate bulk density 0.71 and Brookfield viscosities 920 / 500 / 210 cps at 5.0 / 2.5 / 1.0 g/L. | SNF FLOPAM catalogue 2007; PDF page 4; text lines 122–138. Condition: historical catalogue average indicative values. | Historical catalogue indicative averages only; not verified as current brand-owner specification. |
| The table lists 3 g/L recommended, 5 g/L maximum and 120 minutes dissolution in deionised water at 5 g/L and 25 °C; one-day solution stability; 0–35 °C storage; conditional 24-month shelf life (stable indoor 5–30 °C); 25 kg bags and 750 kg big bags. | SNF FLOPAM catalogue 2007; PDF page 4; text lines 139–160 and following packaging row. | Historical indicative values. Shelf-life footnote requires stable indoor 5–30 °C. Not ChinaPAM specifications. |
Two failure modes and the check that catches each one
Both arise from suffix conflation or incomplete make-down conditions.
| Trigger | Consequence | Verification step |
|---|---|---|
| The VHM suffix is dropped and the enquiry is treated as a root-FO-4490 or SH/SHU/SSH grade, placing an ultra-high-MW inquiry into a standard or high-MW selection lane. | The ultra-high-MW profile and the 120-minute dissolution condition that distinguish VHM from the SH/SHU entries are lost; the wrong equipment baseline is used for the trial. | Lock the printed VHM suffix and obtain current incumbent TDS or bag label before quotation. Confirm that the 120-minute dissolution condition matches the actual site equipment capability. |
| A cross-vendor band assumption or an incomplete make-down misses the ultra-high-MW direction: the source lists a 120-minute dissolution condition and an ultra-high-MW profile, while the current ChinaPAM product range has no same medium-charge/very-high-MW row. | Low apparent activity, fisheyes or a false trial failure can be attributed to a chemistry mismatch rather than a hydration problem, invalidating the comparison. | Run C8003 as the chain-length-priority route and C8001 as the charge-priority route on the same feed at documented active dose and confirmed make-down conditions. |
Intake, trial design and acceptance metrics
Useful intake: full FO 4490 VHM label with VHM suffix; current TDS or COA if the buyer holds one; sludge type and source; solids percentage; pH; incumbent active dose; make-down equipment; trial quantity and destination.
ChinaPAM powder preparation runs at a 1–3 g/L recommended window, 5 g/L maximum, and no longer than 60 minutes at working concentration. Preparation concentration is not process dosage.
The historical catalogue specifies 3 g/L recommended, 5 g/L maximum and 120 minutes in deionised water at 25 °C for the incumbent. Carry those values as historical incumbent context only — apply ChinaPAM TDS make-down instructions for the quoted grade, not the catalogue values. The 120-minute dissolution time is longer than most SH/SHU entries; verify the site dissolution equipment is set up for the full maturation time before comparing activity. Current price, stock status, lead time, applicable TDS and sample arrangements are confirmed in the quotation. Batch-specific COA terms are confirmed with the shipment.
Brand Equivalents & Replacements
ChinaPAM accepts a confirmed FLOPAM FO 4490 VHM enquiry and screens two routes: C8003 as the chain-length-priority primary and C8001 as the charge-aligned backup. Neither is a drop-in or performance-guaranteed replacement. The VHM suffix is mandatory — it identifies a distinct ultra-high-MW grade, separate from the root FO 4490 and SH/SHU/SSH family.
| Brand | Grade | Notes |
|---|---|---|
| SNF FLOPAM | FO 4490 VHM | SNF historical FLOPAM powder catalogue 2007, page 4: Medium charge, Ultra-high MW; bulk density 0.71 (approx.); viscosity 920/500/210 cps at 5.0/2.5/1.0 g/L; 3 g/L recommended, 5 g/L max, 120 min dissolution; 25 kg bags, 750 kg big bags. Historical catalogue values. VHM suffix mandatory. ChinaPAM route: C8003 primary (chain-length axis), C8001 backup (charge axis). Grade-selection screening; no drop-in claimed. |
Need a replacement for a different grade? Contact us with your current product specs.
Frequently Asked Questions — FLOPAM FO 4490 VHM Equivalent — Medium-Charge Ultra-High-MW Cationic PAM Selection
Can ChinaPAM supply for a FLOPAM FO 4490 VHM requirement?
Yes — C8003 as the chain-length-priority primary and C8001 as the charge-aligned backup. Send the full label with VHM suffix and the enquiry opens. Neither grade is a drop-in; the route is confirmed by a same-feed trial.
Why is the VHM suffix mandatory?
Because FO 4490 VHM has its own ultra-high-MW position and 920/500/210 cps viscosity ladder in the 2007 SNF catalogue, and a 120-minute dissolution time that differs from the SH/SHU entries. VHM is a distinct catalogue grade. Dropping the suffix routes an ultra-high-MW enquiry into a different selection bracket.
Is FO 4490 VHM the same product as FO 4490 or FO 4490 SH?
No. Root FO 4490 is Standard MW. SH/SHU are High MW. VHM is Ultra-high MW — a distinct catalogue entry with a different viscosity ladder and longer dissolution time. These are separate products.
Why start with C8003 rather than the medium-charge primary?
Because the catalogue places VHM at Ultra-high MW — the chain-length direction is the defining feature of this suffix. C8003 anchors that direction on the ChinaPAM scale. C8001 then checks whether preserving the medium-charge position more closely improves the result on the buyer's feed.
The catalogue lists 120-minute dissolution. Should I use that for ChinaPAM grades?
No. The 120-minute value is historical catalogue guidance for the SNF incumbent. Use the ChinaPAM TDS make-down instructions for the quoted grade. ChinaPAM general guidance runs at 1–3 g/L recommended, 5 g/L maximum, ≤60 minutes at working concentration.
What is confirmed in the quotation, and what is not stated here?
The quotation confirms all of the following for the selected ChinaPAM grade: applicable TDS/SDS; batch COA terms; packaging options; MOQ; quantity and destination; current price and lead time; and sample or trial arrangements. None of these are published on this page. Current price, stock status, lead time, applicable TDS and sample arrangements are confirmed in the quotation. Batch-specific COA terms are confirmed with the shipment.
Trademark notice. FLOPAM FO 4490 VHM and all other third-party product and brand names on this page are trademarks or registered trademarks of their respective owners. Henan Jinghua New Material Technology Co., Ltd. is not affiliated with, endorsed by, sponsored by or authorised by those owners, and no such relationship is implied. Those names are used here for the sole purpose of identifying the products our grades are compared against, which is necessary to describe what we supply. Our products are separately branded ChinaPAM grades and are not licensed copies. Third-party facts on this page are attributed to the 2007 SNF historical FLOPAM powder catalogue, preserving its historical catalogue role and the full VHM suffix; the values are not presented as current specifications. Performance on your process should be confirmed by jar test or CST test before any change of supply.